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1.
J Am Acad Dermatol ; 90(6): 1200-1209, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38301923

RESUMO

INTRODUCTION: Solid organ transplant recipients (SOTRs) are believed to have an increased risk of metastatic cutaneous squamous cell carcinoma (cSCC), but reliable data are lacking regarding the precise incidence and associated risk factors. METHODS: In a prospective cohort study, including 19 specialist dermatology outpatient clinics in 15 countries, patient and tumor characteristics were collected using standardized questionnaires when SOTRs presented with a new cSCC. After a minimum of 2 years of follow-up, relevant data for all SOTRs were collected. Cumulative incidence of metastases was calculated by the Aalen-Johansen estimator. Fine and Gray models were used to assess multiple risk factors for metastases. RESULTS: Of 514 SOTRs who presented with 623 primary cSCCs, metastases developed in 37 with a 2-year patient-based cumulative incidence of 6.2%. Risk factors for metastases included location in the head and neck area, local recurrence, size > 2 cm, clinical ulceration, poor differentiation grade, perineural invasion, and deep invasion. A high-stage tumor that is also ulcerated showed the highest risk of metastasis, with a 2-year cumulative incidence of 46.2% (31.9%-68.4%). CONCLUSIONS: SOTRs have a high risk of cSCC metastases and well-established clinical and histologic risk factors have been confirmed. High-stage, ulcerated cSCCs have the highest risk of metastasis.


Assuntos
Carcinoma de Células Escamosas , Transplante de Órgãos , Neoplasias Cutâneas , Humanos , Neoplasias Cutâneas/epidemiologia , Neoplasias Cutâneas/patologia , Carcinoma de Células Escamosas/epidemiologia , Estudos Prospectivos , Incidência , Pessoa de Meia-Idade , Masculino , Feminino , Europa (Continente)/epidemiologia , Transplante de Órgãos/efeitos adversos , Fatores de Risco , Idoso , Adulto , Transplantados/estatística & dados numéricos , Invasividade Neoplásica , Neoplasias de Cabeça e Pescoço/epidemiologia , Neoplasias de Cabeça e Pescoço/patologia , Estadiamento de Neoplasias , Recidiva Local de Neoplasia/epidemiologia
2.
Dermatol Ther ; 33(4): e13462, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32338414

RESUMO

Numerous treatment modalities have been tried with diverse results for pruritus due to notalgia paresthetica (NP). Corticosteroids suppress ectopic neural discharges from injured nerve fibers and also have short-lived suppressive effect on transmission in normal C-fibers. Herein, we evaluated the efficacy of intralesional triamcinolone acetonide in the treatment of NP. The medical reports of five patients who had been diagnosed with NP and treated with intralesional triamcinolone acetonide injections were retrospectively evaluated. Triamcinolone acetonide solution was injected intradermally (10 mg/mL; 0.1 mL/cm2 ) every 3 weeks for a maximum of four treatments. The severity of itch was scored by the patients on a combined numerical and visual analogue scale. After treatment, reduction in itch severity scores varied between 33% and 100%.


Assuntos
Doenças do Sistema Nervoso Periférico , Triancinolona Acetonida , Humanos , Injeções Intralesionais , Prurido/diagnóstico , Prurido/tratamento farmacológico , Estudos Retrospectivos , Resultado do Tratamento
3.
J Am Acad Dermatol ; 81(2): 448-455, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30902727

RESUMO

BACKGROUND: Systemic therapeutic management of post-transplant Kaposi sarcoma (KS) is mainly based on 3 axes: reduction of immunosuppression, conversion to mammalian target of rapamycin (mTOR) inhibitors, chemotherapy, or a combination of these. OBJECTIVE: To obtain an overview of clinical strategies about the current treatment of KS. METHODS: We conducted a multicenter retrospective cohort study including 145 solid organ transplant recipients diagnosed with KS between 1985 and 2011 to collect data regarding first-line treatment and response at 6 months. RESULTS: Overall, 95%, 28%, and 16% of patients had reduction of immunosuppression, conversion to mTOR inhibitor, and chemotherapy, respectively. Patients treated with chemotherapy or mTOR inhibitor conversion were more likely to have visceral KS. At 6 months, 83% of patients had response, including 40% complete responses. LIMITATIONS: The retrospective design of the study. CONCLUSION: Currently available therapeutic options seem to be effective to control KS in most patients. Tapering down the immunosuppressive regimen remains the cornerstone of KS management.


Assuntos
Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Imunossupressores/administração & dosagem , Transplante de Órgãos/efeitos adversos , Sarcoma de Kaposi/terapia , Neoplasias Cutâneas/terapia , Adulto , Substituição de Medicamentos , Europa (Continente) , Feminino , Sobrevivência de Enxerto , Humanos , Imunossupressores/uso terapêutico , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Sarcoma de Kaposi/etiologia , Sirolimo/uso terapêutico , Neoplasias Cutâneas/etiologia , Taxa de Sobrevida , Serina-Treonina Quinases TOR/antagonistas & inibidores , Tacrolimo/uso terapêutico
4.
Skinmed ; 16(2): 99-104, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29911526

RESUMO

Because Malassezia folliculitis (MF) may clinically mimic acne vulgaris (AV), patients usually receive unnecessary and prolonged antibiotic treatment. We aimed to determine the prevalence of MF among patients with AV, and to evaluate its response to antifungal treatment. A total of 217 patients with AV underwent cytologic examination for the presence of Malassezia yeasts. Samples were obtained from lesional and nonlesional skin and stained with May-Grünwald-Giemsa. MF was diagnosed if there were more than six spores in one microscopic field (at ×400 magnification). A modified "lesion-counting" method was used to assess the clinical severity of acne. Treatment included oral itraconazole (2×100 mg daily) and topical ketaconazole for 4 weeks. Fifty-five (25.3%) patients were diagnosed with MF; of these, 38 (69.1%) completed the antifungal treatment. The lesions decreased by 50% or more in 26 (68.4%) of the patients who completed the antifungal treatment, which reduced the number of closed comedones/comedolike or molluscoid papules and inflammatory papules. The average number of spores in lesional samples was significantly decreased after treatment (P=<.0005). We observed that MF can present with AV-like lesions, or the two diseases may coexist. Cytology is helpful for making the correct diagnosis and providing proper management of MF.


Assuntos
Acne Vulgar/microbiologia , Antifúngicos/uso terapêutico , Dermatomicoses/microbiologia , Foliculite/microbiologia , Malassezia/isolamento & purificação , Acne Vulgar/diagnóstico , Acne Vulgar/tratamento farmacológico , Adolescente , Adulto , Biópsia por Agulha , Estudos de Coortes , Dermatomicoses/diagnóstico , Dermatomicoses/tratamento farmacológico , Diagnóstico Diferencial , Feminino , Foliculite/tratamento farmacológico , Foliculite/patologia , Humanos , Imuno-Histoquímica , Malassezia/efeitos dos fármacos , Masculino , Estudos Retrospectivos , Medição de Risco , Resultado do Tratamento , Turquia , Adulto Jovem
5.
Australas J Dermatol ; 58(3): 228-230, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26768795

RESUMO

A 69-year-old woman with a 12-month history of asymptomatic erythematous, non-scaly, annular and arciform plaques on her face, trunk and extremities is presented. The skin lesions had been unresponsive to treatment with systemic corticosteroids and antihistamines. Skin biopsy demonstrated superficial and deep dermal inflammatory infiltration consisting mainly of eosinophils and a few neutrophils. Dermal interstitial mucin deposition was also detected in the absence of vasculitis, flame figures or granulomatous reaction. The patient was diagnosed as having eosinophilic annular erythema and treated with hydroxychloroquine (2 × 200 mg/day, p.o.). Response to treatment was observed after 7 weeks and full recovery was achieved after 10 weeks. Eosinophilic annular erythema is rarely reported in the literature. Although hydroxychloroquine is a good choice for treatment, response time can vary between patients.


Assuntos
Antimaláricos/uso terapêutico , Eosinofilia/tratamento farmacológico , Eritema/tratamento farmacológico , Hidroxicloroquina/uso terapêutico , Dermatopatias Genéticas/tratamento farmacológico , Idoso , Eosinofilia/complicações , Eritema/complicações , Feminino , Humanos , Dermatopatias Genéticas/complicações , Fatores de Tempo
6.
J Am Acad Dermatol ; 72(4): 640-50, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25653027

RESUMO

BACKGROUND: Some patients with chronic extensive alopecia areata (AA) may be refractory to topical immunotherapy. Combination therapy is recommended for such patients. Efficacy and safety of a combination therapy with diphenylcyclopropenone (DPCP) and anthralin in chronic extensive AA is unknown. OBJECTIVE: We sought to determine whether the combination therapy of DPCP and anthralin is superior to DPCP alone in chronic extensive AA. METHODS: We retrospectively analyzed the efficacy, side effects, and relapse rates of DPCP (alone or with anthralin) in chronic extensive AA. RESULTS: A total of 47 patients (22 were treated only with DPCP, and 25 with DPCP and anthralin for at least 30 weeks) were evaluated. Complete hair regrowth was observed in 36.4% and 72% of the patients who received DPCP and combination therapy, respectively (P = .01). Hair regrowth duration was shorter with combination therapy (P = .01). Regrowth rates of the eyebrows, eyelashes, and beard in patients on combination therapy were higher than those in patients on DPCP (P = .01). Side effects such as folliculitis, hyperpigmentation, and staining of skin, hair, and clothes were more common in combination therapy group. LIMITATIONS: The retrospective design and small number of patients are limitations. CONCLUSION: Combination therapy with DPCP and anthralin is superior to DPCP alone in chronic extensive AA.


Assuntos
Alopecia em Áreas/tratamento farmacológico , Antralina/uso terapêutico , Ciclopropanos/uso terapêutico , Administração Cutânea , Adolescente , Adulto , Idoso , Alopecia em Áreas/imunologia , Alopecia em Áreas/patologia , Antralina/administração & dosagem , Antralina/efeitos adversos , Apoptose/efeitos dos fármacos , Relação CD4-CD8 , Criança , Ciclopropanos/administração & dosagem , Ciclopropanos/efeitos adversos , Citocinas/metabolismo , Toxidermias/etiologia , Avaliação de Medicamentos , Quimioterapia Combinada , Feminino , Foliculite/induzido quimicamente , Seguimentos , Humanos , Hiperpigmentação/induzido quimicamente , Imunoterapia , Masculino , Pessoa de Meia-Idade , Prurido/induzido quimicamente , Estudos Retrospectivos , Índice de Gravidade de Doença , Subpopulações de Linfócitos T/efeitos dos fármacos , Subpopulações de Linfócitos T/patologia , Resultado do Tratamento , Adulto Jovem
7.
Australas J Dermatol ; 56(2): e43-5, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-24283504

RESUMO

Aquagenic syringeal acrokeratoderma is a rare acquired disorder that predominantly affects young women. It is most commonly localised on the palms. It is characterised by translucent papules, oedematous plaques and keratoderma developing after brief exposure to water and resolving shortly after drying. We have observed 10 patients with this disorder within 13 months. We think that aquagenic syringeal acrokeratoderma is a more common condition than was originally anticipated as one can easily underdiagnose this entity due to the transient nature of its clinical findings.


Assuntos
Ceratodermia Palmar e Plantar/diagnóstico , Ceratodermia Palmar e Plantar/etiologia , Água/efeitos adversos , Adulto , Criança , Feminino , Humanos , Ceratodermia Palmar e Plantar/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Adulto Jovem
8.
Clin Transplant ; 27(5): 742-8, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23991694

RESUMO

BACKGROUND: Sirolimus (SRL) has some dermatologic complications including acneiform eruptions, edema, aphthous ulceration, and onychopathy. However, controlled studies reporting the prevalence and clinical characteristics of mucocutaneous disorders are scarce. OBJECTIVE: To investigate the prevalence and clinical spectrum of mucocutaneous disorders in renal transplant recipients (RTRs) receiving SRL and to compare the findings with those in RTRs not receiving SRL. METHODS: Fifty RTRs (35 men, 15 women; mean age, 34.6 ± 11.6 yr) receiving SRL, 50 RTRs (36 men, 14 women; mean age, 34.4 ± 11.3 yr) not on SRL were screened for mucocutaneous disorders. RESULTS: In RTRs receiving SRL, skin infection (78%) was the most common dermatologic disorder followed by facial hyperpigmentation (50%) and acneiform eruption (46%). Herpes simplex virus infections (14%) and seborrheic dermatitis (38%) were significantly more common in RTRs on SRL (p < 0.05); the frequencies of edema, aphthous ulceration, acne, and longitudinal nail ridging were similar in both groups (p > 0.05). LIMITATIONS: This study had a small sample size. The investigator was not blinded to immunosuppressive treatment protocols. CONCLUSION: Renal transplant recipients receiving SRL are more likely to develop seborrheic dermatitis and herpes simplex virus infections than those not taking SRL. Whereas, they are not more prone to edema, aphthous ulceration, acne, or longitudinal nail ridging.


Assuntos
Rejeição de Enxerto/prevenção & controle , Imunossupressores/efeitos adversos , Transplante de Rim , Mucosa/efeitos dos fármacos , Sirolimo/efeitos adversos , Dermatopatias Infecciosas/induzido quimicamente , Adolescente , Adulto , Estudos de Casos e Controles , Feminino , Seguimentos , Rejeição de Enxerto/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Mucosa/patologia , Prognóstico , Estudos Prospectivos , Fatores de Risco , Dermatopatias Infecciosas/patologia , Adulto Jovem
9.
J Am Acad Dermatol ; 65(5): 972-82, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21565420

RESUMO

BACKGROUND: Dermatoscopy is the most commonly used noninvasive tool for the diagnosis of pigmented skin lesions, but few studies have investigated the value of cytology in the identification of those lesions. OBJECTIVE: We compared the accuracy of dermatoscopy with that of the Tzanck smear test in the diagnosis of pigmented skin lesions, and in differentiating melanocytic from nonmelanocytic lesions. METHODS: Two dermatologists used either dermatoscopy or the Tzanck smear test to evaluate pigmented skin lesions, and the diagnostic accuracy of those methods was determined. RESULTS: Two hundred pigmented skin lesions (110 melanocytic and 90 nonmelanocytic) were evaluated. Cytology was superior to dermatoscopy in differentiating melanocytic pigmented lesions from nonmelanocytic pigmented lesions, but the overall diagnostic accuracy of those methods was the same (90.5%) for all lesions. The diagnostic accuracy of the Tzanck smear test was higher than that of dermatoscopy for both melanocytic and nonmelanocytic malignant pigmented lesions; however, those differences were not significant. LIMITATIONS: Pigmented skin lesions were not evaluated by a dermatologist who used a combination of dermatoscopy and the Tzanck smear test. No conclusion was made about the reliability of those two methods or whether the experience of the dermatologist affected the results. Immunohistochemical staining of the cytologic samples was not performed. CONCLUSION: The diagnostic accuracy of the Tzanck smear test in assessing pigmented skin lesions is similar to that of dermatoscopy. The Tzanck smear test may be a useful diagnostic adjunct to dermatoscopy for determining the melanocytic or nonmelanocytic origin of certain pigmented skin lesions.


Assuntos
Citodiagnóstico/métodos , Dermoscopia , Ceratose Seborreica/diagnóstico , Nevo Pigmentado/diagnóstico , Neoplasias Cutâneas/diagnóstico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia , Neoplasias da Mama , Carcinoma/diagnóstico , Carcinoma/patologia , Carcinoma/secundário , Carcinoma Basocelular/diagnóstico , Carcinoma Basocelular/patologia , Criança , Pré-Escolar , Diagnóstico Diferencial , Feminino , Histiocitoma Fibroso Benigno/diagnóstico , Histiocitoma Fibroso Benigno/patologia , Humanos , Ceratose Seborreica/patologia , Masculino , Melanócitos/patologia , Melanoma/diagnóstico , Melanoma/patologia , Pessoa de Meia-Idade , Nevo Pigmentado/patologia , Estudos Prospectivos , Sensibilidade e Especificidade , Neoplasias Cutâneas/patologia , Neoplasias Cutâneas/secundário , Verrugas/diagnóstico , Verrugas/patologia , Adulto Jovem
10.
J Drugs Dermatol ; 10(7): 710-4, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21720652

RESUMO

BACKGROUND: Isotretinoin is a widely prescribed drug for the treatment of severe acne. Several adverse cardiac effects due to isotretinoin have been previously reported. However, no data exist on the effects of isotretinoin therapy on QT intervals. OBJECTIVE: To investigate the effects of isotretinoin therapy on QT intervals and QT dispersion, and also to see if it is related to serum lipids, homocysteine and lipoprotein (a) or not. METHODS: Forty-five patients with severe acne (mean age 21±6 years, range 14-38 years; 26 female) were included in the study. Twelve-lead surface electrocardiograms (ECGs) were acquired at three stages: before therapy and at the ends of the first and sixth months of 0.8 mg/kg/day of isotretinoin therapy. Serum levels of triglycerides, total cholesterol, low density lipoprotein cholesterol, high density lipoprotein cholesterol, very low density lipoprotein cholesterol, homocysteine and lipoprotein (a) were also measured at the day of ECG recordings. Minimum and maximum QT intervals were measured and QT dispersion was calculated. RESULTS: Mean heart rates were similar throughout the isotretinoin therapy. Serum levels of lipids, homocysteine and lipoprotein (a) all increased significantly at the end of the first month and remained significantly elevated at the end of sixth month (P is less than 0.05 for both stages). QT intervals and QT dispersion did not differ significantly throughout the six months of isotretinoin therapy (P is greater than 0.05). CONCLUSIONS: In patients with severe acne, six months of 0.8 mg/kg/day of isotretinoin therapy neither prolongs QT interval, nor increases QT dispersion. This effect is not related to blood lipids, homocysteine or lipoprotein (a) levels. Our findings indicate that from the point of polymorphic ventricular tachycardia risk, 0.8 mg/kg/day of isotretinoin therapy is a safe choice in acne treatment.


Assuntos
Fármacos Dermatológicos/efeitos adversos , Frequência Cardíaca/efeitos dos fármacos , Isotretinoína/efeitos adversos , Lipídeos/sangue , Lipoproteína(a)/sangue , Síndrome do QT Longo/metabolismo , Acne Vulgar/tratamento farmacológico , Adolescente , Adulto , Fármacos Dermatológicos/uso terapêutico , Progressão da Doença , Eletrocardiografia , Feminino , Humanos , Isotretinoína/uso terapêutico , Síndrome do QT Longo/induzido quimicamente , Masculino , Fatores de Tempo , Adulto Jovem
11.
Skinmed ; 9(1): 23-32, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21409959

RESUMO

The Tzanck smear test is a simple, rapid, valuable, and cost-effective diagnostic method based on the investigation of characteristics of individual cells. In this method, materials are obtained by various techniques and then transferred to a glass slide. Slides can be stained with various dyes and then are examined under a light microscope. To date, cytology has mostly been used in the diagnosis of various erosive-vesiculobullous and nodular lesions, including many tumors. The sampling methods for Tzanck smears and the cytologic findings of a broad range of skin diseases that could provide a rapid diagnosis are described.


Assuntos
Citodiagnóstico/métodos , Dermatopatias/patologia , Testes Cutâneos/métodos , Corantes , Humanos , Microscopia
12.
Sisli Etfal Hastan Tip Bul ; 55(4): 450-456, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35317372

RESUMO

Objectives: Proposals for scientific studies must have an original hypothesis and the appropriate design and methodology to test the premise. Methods: This study is an evaluation of the suitability of applications submitted to a local ethics committee (EC) and the rate of publication of that research. Results: A total of 899 files submitted for EC approval were retrospectively assessed. The EC found that the description of the methods in 44% of the applications was inaccurate, and that this type of error was most often seen in submissions from the surgical branch. In all, 52% of the applications for which we were informed about their final status were not published. Conclusion: The results suggest that improved training in epidemiology is required to reduce the number of application errors and that new regulations could help to motivate healthcare personnel to conduct scientific research and publish their findings.

13.
JAMA Dermatol ; 157(10): 1219-1226, 2021 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-34468690

RESUMO

IMPORTANCE: There is a paucity of evidence to guide physicians regarding prevention strategies for cutaneous squamous cell carcinoma (CSCC) in solid organ transplant recipients (SOTRs). OBJECTIVE: To examine the development and results of a Delphi process initiated to identify consensus-based medical management recommendations for prevention of CSCC in SOTRs. EVIDENCE REVIEW: Dermatologists with more than 5 years' experience treating SOTRs were invited to participate. A novel actinic damage and skin cancer index (AD-SCI), consisting of 6 ordinal stages corresponding to an increasing burden of actinic damage and CSCC, was used to guide survey design. Three sequential web-based surveys were administered from January 1, 2019, to December 31, 2020. Pursuant to Delphi principles, respondents thoroughly reviewed all peer responses between rounds. Supplemental questions were also asked to better understand panelists' rationale for their responses. FINDINGS: The Delphi panel comprised 48 dermatologists. Respondents represented 13 countries, with 27 (56%) from the US. Twenty-nine respondents (60%) were Mohs surgeons. Consensus was reached with 80% or higher concordance among respondents when presented with a statement, question, or management strategy pertaining to prevention of CSCC in SOTRs. A near-consensus category of 70% to less than 80% concordance was also defined. The AD-SCI stage-based recommendations were established if consensus or near-consensus was achieved. The panel was able to make recommendations for 5 of 6 AD-SCI stages. Key recommendations include the following: cryotherapy for scattered actinic keratosis (AK); field therapy for AK when grouped in 1 anatomical area, unless AKs are thick in which case field therapy and cryotherapy were recommended; combination lesion directed and field therapy with fluorouracil for field cancerized skin; and initiation of acitretin therapy and discussion of immunosuppression reduction or modification for patients who develop multiple skin cancers at a high rate (10 CSCCs per year) or develop high-risk CSCC (defined by a tumor with approximately ≥20% risk of nodal metastasis). No consensus recommendation was achieved for SOTRs with a first low risk CSCC. CONCLUSIONS AND RELEVANCE: Physicians may consider implementation of panel recommendations for prevention of CSCC in SOTRs while awaiting high-level-of-evidence data. Additional clinical trials are needed in areas where consensus was not reached.


Assuntos
Carcinoma de Células Escamosas , Ceratose Actínica , Transplante de Órgãos , Neoplasias Cutâneas , Carcinoma de Células Escamosas/etiologia , Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/prevenção & controle , Técnica Delphi , Humanos , Ceratose Actínica/etiologia , Ceratose Actínica/patologia , Ceratose Actínica/prevenção & controle , Transplante de Órgãos/efeitos adversos , Neoplasias Cutâneas/etiologia , Neoplasias Cutâneas/patologia , Neoplasias Cutâneas/prevenção & controle , Transplantados
14.
Dermatol Surg ; 36(5): 659-64, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-20384747

RESUMO

OBJECTIVE: To analyze the accuracy of the Tzanck smear test (TST) for margin control in surgery for well-demarcated basal cell carcinoma (BCC). METHODS AND MATERIALS: Twenty-one patients with well-demarcated BCC were included in this study. After local anesthesia, the tumors were excised. The pathologist examined the frozen sections. If the tumor cells were observed in the margin, a re-excision was done. This procedure was repeated until the margin was tumor free. After each excision, Tzanck smear samples were taken from the defect area. The samples obtained were stained with May-Grünwald-Giemsa and examined. The accuracy of TST was then analyzed by comparison of the TST results with those of frozen section examination. RESULTS: The sensitivity and specificity of TST for margin assessment were 1.00 (95% confidence interval (CI)=1.00-1.00) and 0.99 (95% CI=0.98-1.00), respectively. Positive and negative predictive values and the diagnostic accuracy for TST were 0.94 (95% CI=0.84-1.05), 1.00 (95% CI=1.00-1.00), and 1.00 (95% CI=0.99-1.00), respectively. No recurrences were observed in the average 2-year follow-up period. CONCLUSION: The high accuracy of TST for margin control is encouraging to develop a practical alternative approach for the treatment of well-demarcated BCC.


Assuntos
Carcinoma Basocelular/cirurgia , Neoplasias de Cabeça e Pescoço/cirurgia , Neoplasias Cutâneas/cirurgia , Pele/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Basocelular/patologia , Bochecha , Citodiagnóstico/métodos , Feminino , Testa , Mãos , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Período Intraoperatório , Masculino , Pessoa de Meia-Idade , Neoplasias Nasais/patologia , Neoplasias Nasais/cirurgia , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Neoplasias Cutâneas/patologia , Adulto Jovem
15.
J Am Acad Dermatol ; 61(3): 441-50, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19700014

RESUMO

BACKGROUND: Granulomatous dermatitis is a distinctive histopathologic cutaneous reaction pattern against various infectious and noninfectious agents. Cytologically, granulomatous dermatitis shows granulomas and multinucleated giant cells. Various etiologic agents of granulomatous diseases can also be identified. OBJECTIVE: We aimed to investigate Tzanck smear findings in granulomatous skin diseases. METHODS: Patients who had granulomas and/or multinucleated giant cells of Langhans, foreign body- and/or Touton type in Tzanck smear tests were included in the study. In these patients, Tzanck preparations were then further evaluated for additional cytologic findings. Samples stained with May-Grünwald-Giemsa stain were evaluated by the same dermatologist throughout the study. In some patients, methylene blue, Gram and/or Erlich-Ziehl-Nielsen stains were also performed. In all of the study cases, the final diagnosis was established after the evaluation of clinical and laboratory findings (including, when appropriate, potassium hydroxide examination; bacterial, leishmanial, and fungal cultures; histopathology; tuberculosis and leishmania polymerase chain reaction). We also calculated the sensitivity and specificity of the Leishman-Donovan body for cutaneous leishmaniasis. RESULTS: Over a 2-year period, 94 of 950 patients (9.9%) in whom Tzanck smear tests were performed had cytologic findings consistent with a granulomatous reaction. In 74 (78.7%) and 20 (21.3%) patients, the granulomatous reaction was due to infectious and noninfectious causes, respectively. Infectious causes included cutaneous leishmaniasis in 65 patients (87.8%), candidal granuloma in two patients, botyromycosis in two patients, and aspergillosis, blastomycosis, mucormycosis, leprosy, and cutaneous tuberculosis in one patient each. In 58 of 74 patients (78.4%) with infectious granulomatous dermatitis, the causes of the granulomas were identified. Noninfectious granulomatous reactions were due to granuloma annulare in 7 patients, sarcoidosis in 5 patients, a foreign body in 4 patients, necrobiosis lipoidica in 2 patients, and juvenile xanthogranuloma in 2 patients. In 17 of 20 patients (85%) with noninfectious granulomatous reactions, the cytologic findings were characteristic of the final diagnoses. The sensitivity and specificity of Leishman-Donovan bodies for cutaneous leishmaniasis were 76.9% and 100%, respectively. LIMITATIONS: All of the samples were evaluated by the same dermatologist throughout the study; therefore no comment could be made regarding the reliability of the Tzanck smear test. In addition, the sensitivity and specificity of Tzanck smear test findings for diseases other than cutaneous leishmaniasis could not be calculated because of an insufficient number of patients. CONCLUSION: The Tzanck smear test may be a useful diagnostic tool for certain granulomatous skin diseases.


Assuntos
Citodiagnóstico/métodos , Dermatite/patologia , Doença Granulomatosa Crônica/patologia , Pele/patologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Algoritmos , Criança , Pré-Escolar , Corantes , Citodiagnóstico/normas , Dermatomicoses/patologia , Amarelo de Eosina-(YS) , Reações Falso-Negativas , Feminino , Células Gigantes de Langhans/patologia , Humanos , Leishmaniose Cutânea/patologia , Lúpus Vulgar/patologia , Masculino , Azul de Metileno , Pessoa de Meia-Idade , Sensibilidade e Especificidade , Adulto Jovem
16.
J Am Acad Dermatol ; 59(6): 958-64, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-18929431

RESUMO

BACKGROUND: Tzanck smear is generally used for the diagnosis of the pemphigus group of autoimmune bullous diseases and mucocutaneous herpesvirus infections. There are only a few studies in the literature investigating its diagnostic value. OBJECTIVES: We aimed to investigate Tzanck smear findings and to determine the diagnostic value of this test in moist (erosive, vesicular, bullous, and pustular) skin lesions. We also aimed to develop an algorithmic approach for the diagnosis of these types of skin lesions according to the Tzanck smear findings. METHODS: Samples were stained with May-Grünwald-Giemsa and evaluated by the same dermatologist. In some patients, methylene blue and Gram staining or direct immunofluorescence examinations were additionally performed. In all of the study cases, after the evaluation of clinical and laboratory findings (including, when appropriate, potassium hydroxide examination; viral serology; bacterial and fungal cultures; histopathology; direct and indirect immunofluorescence; patch testing), the definite diagnosis was established. We also determined the sensitivity and the specificity of certain Tzanck smear findings. RESULTS: Tzanck smear was performed in a total of 400 patients with moist skin lesions. The sensitivities of multinucleated giant cells and acantholytic cells in herpetic infections, dyskeratotic acantholytic cells and cocci in bullous impetigo, pseudohyphae in candidiasis, acantholytic cells in pemphigus and more than 10 tadpole cells (magnification x100) in spongiotic dermatitis were 84.7%, 92%, 100%, 100%, and 81.5%, respectively. LIMITATIONS: Because Tzanck smears were evaluated by the same dermatologist, no comment could be made regarding the interobserver reliability of this test and how the level of experience with this technique might affect the results. Also, the sensitivity and the specificity of Tzanck smear test findings for certain diseases could not be calculated because of an insufficient number of patients. CONCLUSION: The Tzanck smear test is an inexpensive, useful, and an easy diagnostic tool for certain skin diseases.


Assuntos
Citodiagnóstico/métodos , Dermatopatias Vesiculobolhosas/diagnóstico , Dermatopatias/diagnóstico , Adolescente , Adulto , Idoso , Algoritmos , Criança , Pré-Escolar , Amarelo de Eosina-(YS) , Feminino , Humanos , Lactente , Masculino , Azul de Metileno , Pessoa de Meia-Idade , Estudos Prospectivos
17.
Exp Clin Transplant ; 16 Suppl 1(Suppl 1): 198-202, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29528027

RESUMO

OBJECTIVES: The incidence and mortality of melanoma are increased in organ transplant recipients. Multiple acquired common and dysplastic nevi are risk factors for melanoma. A new or changing nevus may suggest melanoma. Strategies used by transplant dermatologists to monitor nevi are unknown. Herein, we aimed to assess the methods used by transplant dermatologists for monitoring multiple acquired common nevi, dysplastic nevi, and new or changing nevi. MATERIALS AND METHODS: A questionnaire was e-mailed to 63 members of the Skin Care in Organ Transplant Patients, Europe. RESULTS: Thirty-eight (92.7%) of 41 responders reported that they instruct their patients to perform regular self-skin examinations. Of 41 responders, 41.5% prescribed screening every 6 months, 36.6% prescribed it every 12 months, 12.2% prescribed it every 3 months, and 9.7% performed screening without regular intervals. Regarding type of examination, 80.5% performed full-body skin examinations with the naked eye, 70.7% performed dermoscopy of clinically suspicious nevi, 53.6% offered dermoscopic photography of dermoscopically suspicious nevi, 36.6% provided close-up photography of clinically suspicious nevi, 34.1% performed baseline total body photography, and 24.4% conducted dermoscopy of all nevi. We also found that 7.3%, 4.9%, and 4.9% performed only full-body skin examination with the naked eye, only dermoscopy of clinically suspicious nevi, and only dermoscopy of all nevi, respectively. CONCLUSIONS: Dedicated transplant dermatologists perform a wide variety of nevi screening procedures in organ transplant recipients. Transplant dermatologists should include sequential digital dermoscopic imaging in their armamentarium to follow organ transplant recipients with melanocytic lesions. A combination of techniques is advisable for detecting early posttransplant melanomas.


Assuntos
Dermatologistas/tendências , Dermatologia/tendências , Detecção Precoce de Câncer/tendências , Nevo/diagnóstico , Transplante de Órgãos/efeitos adversos , Padrões de Prática Médica/tendências , Neoplasias Cutâneas/diagnóstico , Dermoscopia/tendências , Europa (Continente) , Pesquisas sobre Atenção à Saúde , Humanos , Nevo/etiologia , Exame Físico/tendências , Vigilância da População , Valor Preditivo dos Testes , Prognóstico , Fatores de Risco , Autoexame/tendências , Neoplasias Cutâneas/etiologia , Fatores de Tempo
18.
Adv Ther ; 24(4): 706-11, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17901020

RESUMO

Brucellosis remains an important public health problem in Turkey, just as it is in other regions of the world. This study was conducted to determine the types and rates of cutaneous lesions that occur in patients with brucellosis. Brucellosis was diagnosed by standard tube agglutination testing for Brucella antibodies at a titer of 1/160 or higher in the presence of compatible clinical findings. A total of 140 patients who had been given a diagnosis of brucellosis were prospectively observed in the dermatology clinic. Of these patients, 102 (72.9%) were female, with a mean age of 44.11+/-18.22 y, and 38 (27.1%) were male, with a mean age of 46.44+/-14.58 y. The duration of symptoms was less than 2 mo (acute) in 75 patients (53.5%), from 2 to 12 mo (subacute) in 30 patients (21.4%), and longer than 12 mo (chronic) in 35 patients (25.0%). Cutaneous findings related to brucellosis were observed in 8 (5.71%) of the 140 cases. Maculopapular eruptions were observed in 2 patients (25%), erythema nodosum-like lesions in 2 (25%), psoriasiform lesions in 1 (12.5%), palmar erythema in 1 (12.5%), malar eruption in 1 (12.5%), and palmar eczema in 1 (12.5%). The investigators concluded that although cutaneous findings encountered in brucellosis are generally not specific to this disease, the presence of these findings may be useful in diagnosing brucellosis in persons who live in, or used to live in, endemic regions.


Assuntos
Brucelose/patologia , Dermatopatias/patologia , Pele/patologia , Doença Aguda , Adulto , Doença Crônica , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Dermatopatias/epidemiologia
19.
Acta Dermatovenerol Croat ; 25(3): 181-188, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29252169

RESUMO

Pemphigus is a group of rare and life-threatening autoimmune blistering diseases of the skin and mucous membranes. Although they occur worldwide, their incidence shows wide geographical variation, and prospective data on the epidemiology of pemphigus are very limited. Objective of this work is to evaluate the incidence and epidemiological and clinical features of patients with pemphigus in Turkey. All patients newly diagnosed with pemphigus between June 2013 and June 2014 were prospectively enrolled in 33 dermatology departments in 20 different provinces from all seven regions of Turkey. Disease parameters including demography and clinical findings were recorded. A total of 220 patients were diagnosed with pemphigus during the 1-year period, with an annual incidence of 4.7 per million people in Turkey. Patients were predominantly women, with a male to female ratio of 1:1.41. The mean age at onset was 48.9 years. Pemphigus vulgaris (PV) was the commonest clinical subtype (n=192; 87.3%), followed by pemphigus foliaceus (n=21; 9.6%). The most common clinical subtype of PV was the mucocutaneous type (n=83; 43.2%). The mean Pemphigus Disease Area Index was 28.14±22.21 (mean ± Standard Deviation). The incidence rate of pemphigus in Turkey is similar to the countries of South-East Europe, higher than those reported for the Central and Northern European countries and lower than the countries around the Mediterranean Sea and Iran. Pemphigus is more frequent in middle-aged people and is more common in women. The most frequent subtype was PV, with a 9-fold higher incidence than pemphigus foliaceus.


Assuntos
Pênfigo/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Pênfigo/diagnóstico , Pênfigo/imunologia , Estudos Prospectivos , Turquia/epidemiologia , Adulto Jovem
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