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1.
Semin Intervent Radiol ; 39(3): 341-347, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36062217
2.
J Surg Res ; 270: 405-412, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34749121

RESUMO

BACKGROUND: Percutaneous cholecystostomy tubes (PCT) are utilized in the management of acute cholecystitis in patients deemed unsuitable for surgery. However, the drive for these decisions and the outcomes remain understudied. We sought to characterize the practices and utilization of PCT and evaluate associated outcomes at an urban medical center. METHODS: Patients undergoing PCT placement over a 12-y study period ending May 2019 were reviewed. Demographics, clinical presentation, labs, imaging studies, and outcomes were abstracted. The primary and secondary outcomes were 30-d mortality and interval cholecystectomy, respectively. RESULTS: Two hundred and four patients met inclusion criteria: 59.3% were male with a median age of 67.5 y and a National Surgical Quality Improvement Program (NSQIP) risk of serious complication of 8.0%. Overall, 57.8% of patients were located in an intensive care unit setting. The majority (80.9%) had an ultrasound and 48.5% had a hepatobiliary iminodiacetic acid scan. The overall 30-d mortality was 31.9%: 41.5% for intensive care unit and 18.6% for ward patients (P < 0.01). Of patients surviving beyond 30 d (n = 139), the PCT was removed from 106 (76.3%), and a cholecystectomy was performed in 55 (39.6%) at a median interval of 58.0 d. A forward logistic regression identified total bilirubin (Adjusted Odds Ratio: 1.12, adjusted P < 0.01) and NSQIP risk of serious complication (Adjusted Odds Ratio: 1.16, adjusted P < 0.01) as the only predictors for 30-d mortality. CONCLUSIONS: Patients selected for PCT placement have a high mortality risk. Despite subsequent removal of the PCT, the majority of surviving patients did not undergo an interval cholecystectomy. Total bilirubin and NSQIP risk of serious complication are useful adjuncts in predicting 30-d mortality in these patients.


Assuntos
Colecistite Aguda , Colecistostomia , Colecistite Aguda/diagnóstico , Colecistite Aguda/cirurgia , Colecistostomia/efeitos adversos , Colecistostomia/métodos , Humanos , Masculino , Prognóstico , Estudos Retrospectivos , Resultado do Tratamento
4.
Acta Radiol ; 62(9): 1142-1147, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32957795

RESUMO

BACKGROUND: Percutaneous cholecystostomy is performed by interventional radiologists for patients with calculous/acalculous cholecystitis who are poor candidates for cholecystectomy. Two anatomical approaches are widely utilized: transperitoneal and transhepatic. PURPOSE: To compare the clinical outcomes of transperitoneal and transhepatic approaches to cholecystostomy catheter placement. MATERIAL AND METHODS: From December 2007 to August 2015, 165 consecutive patients (97 men, 68 women) underwent either transperitoneal (n = 89) or transhepatic (n = 76) cholecystostomy at a single center. Indications were calculous cholecystitis (n = 21), acalculous cholecystitis (n = 35), hydrops (n = 1), gangrenous cholecystitis (n = 1), and other cholecystitis (n = 107). The most common high-risk co-morbidities were sepsis (n = 53) and cardiac (n = 11). Outcomes were compared using univariate and multivariable analysis. RESULTS: Post-procedure outcomes included tube dislodgement (transperitoneal [n = 6] and transhepatic [n = 3], P = 0.44), bile leak (transperitoneal [n = 5], transhepatic [n = 1], P = 0.14), gallbladder hemorrhage (transperitoneal [n = 2]; transhepatic [n = 3], P = 0.52), duodenal fistula (transperitoneal [n = 0], transhepatic [n = 1], P = 0.27), repeat cholecystostomy (transperitoneal [n = 1], transhepatic [n = 3], P = 0.27), and repeat cholecystitis requiring separate admission (transperitoneal [n = 6], transhepatic [n = 10], P = 0.15). All complications were Common Terminology Criteria for Adverse Events grade <3. Twenty transperitoneal patients underwent post-procedure cholecystectomy: 13 laparoscopic, three open, and four unclear/outside records. The mean time from cholecystostomy to operation was 38 days (range 3-211 days). Twenty-three transhepatic patients underwent cholecystectomy: 14 laparoscopic, eight open, and one unclear/outside records, with the mean time from cholecystostomy being 98 days (range 0-1053 days). One transhepatic and three transperitoneal patients died during admission. CONCLUSION: There were no significant differences in short-term complications after transperitoneal and transhepatic approaches to percutaneous cholecystostomy catheter placement.


Assuntos
Colecistite Aguda/diagnóstico por imagem , Colecistite Aguda/cirurgia , Colecistostomia/métodos , Ultrassonografia de Intervenção/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Fígado/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Peritônio/diagnóstico por imagem , Resultado do Tratamento , Adulto Jovem
6.
J Vasc Interv Radiol ; 30(12): 1924-1933.e2, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31685362

RESUMO

Health-related quality of life has become an important aspect in oncologic decision making. Recent data suggest that Health-Related Quality of Life (HRQoL) measurements can play an important prognostic role in patients with hepatocellular carcinoma (HCC). Locoregional therapies (LRTs) such as radiofrequency ablation, transarterial chemoembolization, and radioembolization (TARE) are important parts of HCC management. Results demonstrated that radiofrequency ablation treatment results in improving HRQoL compared to surgery for up to 3 years after treatment. Between TARE and transarterial chemoembolization, TARE provides the most benefit in terms of HRQoL. This systematic review investigated contemporary data surrounding HRQoL in patients undergoing LRTs and its impact on clinical decision making.


Assuntos
Sobreviventes de Câncer , Carcinoma Hepatocelular/terapia , Quimioembolização Terapêutica , Neoplasias Hepáticas/terapia , Qualidade de Vida , Ablação por Radiofrequência , Compostos Radiofarmacêuticos/administração & dosagem , Carcinoma Hepatocelular/diagnóstico , Quimioembolização Terapêutica/efeitos adversos , Tomada de Decisão Clínica , Feminino , Nível de Saúde , Humanos , Neoplasias Hepáticas/diagnóstico , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Ablação por Radiofrequência/efeitos adversos , Compostos Radiofarmacêuticos/efeitos adversos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
7.
Cardiovasc Intervent Radiol ; 41(2): 231-238, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28900709

RESUMO

PURPOSE: To investigate the association between pretransplant intra-arterial liver-directed therapy (IAT) for hepatocellular carcinoma (HCC) and hepatic arterial complications (HAC) in orthotopic liver transplantation (OLT) [namely hepatic artery thrombosis (HAT) and/or the need for hepatic arterial conduit]. METHODS: A total of 175 HCC patients (mean age: 60 years) underwent IAT with either transarterial chemoembolization or yttrium-90 (90Y) transarterial radioembolization prior to OLT between 2003 and 2013. A matched control cohort of 159 HCC patients who underwent OLT without prior IAT was selected. Incidence of HAC in both cohorts was investigated. The categorical differences between both cohorts were calculated by chi-square test. RESULTS: Among the 175 patients (chemoembolization, n = 82; radioembolization, n = 93), 8 (5%) required conduits due to HA disease (chemoembolization, n = 6; radioembolization, n = 2), 3 (2%) developed HAT (chemoembolization, n = 2; radioembolization, n = 1). Eleven of 175 patients (6.7%) had HAC. Of the 159 control patients, 6 (4%) needed conduits for HA disease and 3 (2%) developed HAT. Nine of 159 patients (5.7%) had HAC. Chi-square analysis between the IAT cohort and the control group yielded a p value of 0.810. When comparing chemoembolization to radioembolization, p = 0.076 (not significant at p < 0.05). CONCLUSION: Although aggressive pretransplant radioembolization and chemoembolization are both utilized in most liver transplant centers, neither appears to increase the risk of peri-transplant hepatic arterial complications in HCC patients.


Assuntos
Carcinoma Hepatocelular/terapia , Embolização Terapêutica/métodos , Artéria Hepática/cirurgia , Complicações Intraoperatórias/prevenção & controle , Neoplasias Hepáticas/terapia , Transplante de Fígado , Cuidados Pré-Operatórios/normas , Adulto , Idoso , Quimioembolização Terapêutica/normas , Feminino , Humanos , Complicações Intraoperatórias/cirurgia , Masculino , Pessoa de Meia-Idade , Risco , Trombose/prevenção & controle , Trombose/cirurgia , Procedimentos Cirúrgicos Vasculares , Radioisótopos de Ítrio/uso terapêutico
8.
Hepatology ; 68(4): 1429-1440, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29194711

RESUMO

Yttrium-90 transarterial radioembolization (TARE) is a locoregional therapy (LRT) for hepatocellular carcinoma (HCC). In this study, we present overall survival (OS) outcomes in a 1,000-patient cohort acquired over a 15-year period. Between December 1, 2003 and March 31, 2017, 1,000 patients with HCC were treated with TARE as part of a prospective cohort study. A comprehensive review of toxicity and survival outcomes was performed. Outcomes were stratified by baseline Child-Pugh (CP) class, United Network for Organ Sharing (UNOS), and Barcelona Clinic Liver Cancer (BCLC) staging systems. Albumin and bilirubin laboratory toxicities were compared to baseline. OS outcomes were reported using censoring and intention-to-treat methodologies. All treatments were outpatient, with a median one treatment per patient. Five hundred six (51%) were CP A, 450 (45%) CP B, and 44 (4%) CP C. Two hundred sixty-three (26%) patients were BCLC A, 152 (15%) B, 541 (54%) C, and 44 (4%) D. Three hundred sixty-eight (37%) were UNOS T1/T2, 169 (17%) T3, 147 (15%) T4a, 223 (22%) T4b, and 93 (9%) N/M. In CP A patients, censored OS for BCLC A was 47.3 (confidence interval [CI], 39.5-80.3) months, BCLC B 25.0 (CI, 17.3-30.5) months, and BCLC C 15.0 (CI, 13.8-17.7) months. In CP B patients, censored OS for BCLC A was 27 (CI, 21-30.2) months, BCLC B 15.0 (CI, 12.3-19.0) months, and BCLC C 8.0 (CI, 6.8-9.5) months. Forty-nine (5%) and 110 (11%) patients developed grade 3/4 albumin and bilirubin toxicities, respectively. CONCLUSION: Based on our experience with 1,000 patients over 15 years, we have made a decision to adopt TARE as the first-line transarterial LRT for patients with HCC. Our decision was informed by prospective data and incrementally reported demonstrating outcomes stratified by BCLC, applied as either neoadjuvant or definitive treatment. (Hepatology 2017).


Assuntos
Braquiterapia/métodos , Carcinoma Hepatocelular/radioterapia , Neoplasias Hepáticas/radioterapia , Radioisótopos de Ítrio/uso terapêutico , Adulto , Idoso , Análise de Variância , Institutos de Câncer , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/mortalidade , Estudos de Coortes , Tomada de Decisões , Intervalo Livre de Doença , Feminino , Seguimentos , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Invasividade Neoplásica/patologia , Estadiamento de Neoplasias , Lesões por Radiação/prevenção & controle , Dosagem Radioterapêutica , Estudos Retrospectivos , Medição de Risco , Taxa de Sobrevida , Fatores de Tempo , Resultado do Tratamento , Estados Unidos
9.
J Clin Aesthet Dermatol ; 10(3): 46-50, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28360969

RESUMO

Purpose: To describe a man with an adherent tick mimicking a melanoma, summarize the salient features of this condition, and review other cases of ticks mistaken for dermatoses. Background: Ticks are obligatory ectoparasites. Disease-causing ticks belong to two families: Ixodidae (hard ticks) and Argasidae (soft ticks). Ticks thrive by consuming blood from animal hosts, and the transfer of infected blood from one host to the next is the method by which ticks spread disease. Materials and methods: The authors describe a man who presented to their dermatology clinic in New York with an unusual black pigmented lesion on the right zygomatic region of his face. He was worried about how rapidly the lesion had developed and the tingling of the skin surrounding it. Since the patient had a history of nonmelanoma skin cancer, he was concerned that the lesion was a melanoma. An excisional biopsy of the lesion revealed a non-Ixodes tick with a surrounding tick-bite reaction. Results: Ticks cause cutaneous manifestations through physical trauma and their salivary contents. A number of reports describe a similar phenomenon of a persistent tick being mistaken for a nodule or tumor. Management includes complete removal of a tick, either mechanically or surgically, along with the appropriate work-up for tick-borne diseases in the relevant geographic location. The decision to test for systemic disease depends on the clinical presentation of the patient and geographic location of the tick bite. Conclusion: A patient presented to the authors' dermatology clinic with a pigmented lesion suspicious for a melanoma, but the lesion was actually an adherent non-Ixodes tick. This case illustrates the importance of keeping insects and arthropods in the differential diagnosis of a sudden- and recent-onset pigmented skin lesion.

10.
Cutis ; 99(3): E32-E35, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28398428

RESUMO

Palmoplantar keratoderma (PPK) is a dermatosis that presents as hyperkeratosis of the palms and soles. It may be acquired or heritable. Acquired PPK often occurs as a paraneoplastic response as well as a stigma of other dermatoses. We report a rare case of a 72-year-old woman with acquired PPK secondary to metastatic uterine adenocarcinoma. We also review other rare cases of cutaneous paraneoplasia secondary to uterine cancer and describe the salient features of acquired PPK. Acquired PPK most commonly presents as a paraneoplastic response to visceral malignancies that include localized esophageal, pulmonary, urinary/bladder, and gastric carcinomas, as well as myeloma. Management of acquired PPK includes treatment of the underlying cause. Adjunctive vitamin A analogues have been found to be effective.


Assuntos
Adenocarcinoma/patologia , Ceratodermia Palmar e Plantar/diagnóstico , Síndromes Paraneoplásicas/diagnóstico , Neoplasias Uterinas/patologia , Idoso , Feminino , Humanos , Ceratodermia Palmar e Plantar/etiologia , Síndromes Paraneoplásicas/patologia , Neoplasias Cutâneas/diagnóstico , Neoplasias Cutâneas/patologia , Neoplasias Cutâneas/secundário
11.
Cancer J ; 22(6): 373-380, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27870679

RESUMO

Colorectal cancer is the third leading cause of cancer death in the United States. Although hepatic excision is the first-line treatment for colorectal liver metastasis (CRLM), few patients are candidates. Locoregional therapy (LRT) encompasses minimally invasive techniques practiced by interventional radiology. These include ablative treatments (radiofrequency ablation, microwave ablation, and cryosurgical ablation) and transcatheter intra-arterial therapy (hepatic arterial infusion chemotherapy, transarterial "bland" embolization, transarterial chemoembolization, and radioembolization with yttrium 90). The National Comprehensive Cancer Network recommends LRT for unresectable CRLM refractory to chemotherapy. The following is a review of LRT in CRLM, including salient features, advantages, limitations, current roles, and future considerations.


Assuntos
Neoplasias Colorretais/terapia , Neoplasias Hepáticas/terapia , Braquiterapia , Ablação por Cateter , Neoplasias Colorretais/patologia , Embolização Terapêutica , Humanos , Neoplasias Hepáticas/secundário
12.
J Clin Aesthet Dermatol ; 9(8): 42-6, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27672418

RESUMO

Fully regressive melanoma is a phenomenon in which the primary cutaneous melanoma becomes completely replaced by fibrotic components as a result of host immune response. Although 10 to 35 percent of cases of cutaneous melanomas may partially regress, fully regressive melanoma is very rare; only 47 cases have been reported in the literature to date. AH of the cases of fully regressive melanoma reported in the literature were diagnosed in conjunction with metastasis on a patient. The authors describe a case of fully regressive melanoma without any metastases at the time of its diagnosis. Characteristic findings on dermoscopy, as well as the absence of melanoma on final biopsy, confirmed the diagnosis.

13.
J Vasc Interv Radiol ; 27(9): 1453-1456, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27566430
14.
J Vasc Interv Radiol ; 27(9): 1329-1336, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27266362

RESUMO

PURPOSE: To compare the regulation of serum angiogenic factors in patients with unresectable early hepatocellular carcinoma (HCC) treated with yttrium-90 ((90)Y) radioembolization alone vs with sorafenib. MATERIALS AND METHODS: In a single-center pilot study, 23 patients with unresectable HCC awaiting orthotopic liver transplantation were prospectively randomized to receive radioembolization alone (n = 12) or radioembolization with sorafenib (n = 11). Serum angiogenic markers (angiopoietin-2 [Ang-2], hepatocyte growth factor, interleukin [IL]-6, IL-8, c-reactive protein, platelet-derived growth factor [PDGF], and vascular endothelial growth factor [VEGF]) were assayed at baseline and at 2 and 4 weeks after radioembolization ((90)Y alone, n = 6; (90)Y plus sorafenib, n = 7). RESULTS: In the (90)Y-alone group, all growth factors were elevated above baseline levels at 2 and 4 weeks: VEGF increased 36% vs baseline at 2 weeks and 22% at 4 weeks, and PDGF increased 24% at 2 weeks and 3% at 4 weeks. In the (90)Y/sorafenib arm, Ang-2 and PDGF decreased at 2 weeks and the remainder increased. By 4 weeks, only PDGF remained below baseline levels. VEGF increased 49% at 2 weeks and 28% at 4 weeks, and PDGF decreased 31% at 2 weeks and 39% at 4 weeks. Differences were statistically significant for hepatocyte growth factor (P = .03) and PDGF (P = .02) at 2 weeks and for IL-6 (P = .05) at 4 weeks. CONCLUSIONS: Radioembolization is associated with a mild increase in angiogenic markers. The addition of sorafenib blunts PDGF response; other factors such as VEGF remain unaffected. The predominant effect of sorafenib may be through downregulation of PDGF and not VEGF.


Assuntos
Inibidores da Angiogênese/administração & dosagem , Biomarcadores Tumorais/sangue , Carcinoma Hepatocelular/terapia , Embolização Terapêutica/métodos , Neoplasias Hepáticas/terapia , Niacinamida/análogos & derivados , Compostos de Fenilureia/administração & dosagem , Fator de Crescimento Derivado de Plaquetas/metabolismo , Compostos Radiofarmacêuticos/administração & dosagem , Radioisótopos de Ítrio/administração & dosagem , Idoso , Inibidores da Angiogênese/efeitos adversos , Carcinoma Hepatocelular/sangue , Carcinoma Hepatocelular/diagnóstico por imagem , Carcinoma Hepatocelular/patologia , Chicago , Regulação para Baixo , Embolização Terapêutica/efeitos adversos , Feminino , Humanos , Neoplasias Hepáticas/sangue , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Neovascularização Patológica , Niacinamida/administração & dosagem , Niacinamida/efeitos adversos , Compostos de Fenilureia/efeitos adversos , Projetos Piloto , Estudos Prospectivos , Compostos Radiofarmacêuticos/efeitos adversos , Sorafenibe , Fatores de Tempo , Resultado do Tratamento , Radioisótopos de Ítrio/efeitos adversos
16.
J Vasc Interv Radiol ; 27(9): 1279-1287, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27062355

RESUMO

PURPOSE: To determine the efficacy of single- versus triple-drug chemoembolization for the treatment of hepatocellular carcinoma, as measured by toxicity, tumor response, time to progression (TTP), and overall survival (OS). MATERIALS AND METHODS: A single-center retrospective review was performed on 337 patients who underwent chemoembolization over a 14-year period; 172 patients underwent triple-drug conventional transarterial chemoembolization, and 165 patients underwent single-agent doxorubicin chemoembolization. Imaging characteristics and clinical follow-up after conventional transarterial chemoembolization were evaluated to determine TTP. Imaging response was determined per World Health Organization and European Association for the Study of Liver criteria. OS from time of first chemoembolization was calculated. RESULTS: Median TTP was similar between groups: 7.9 months (95% confidence interval [CI], 7.1-9.4) and 6.8 months (95% CI, 4.6-8.6) for triple- and single-drug regimens, respectively (P > .05). For single-agent conventional transarterial chemoembolization, median OS varied significantly by Barcelona Clinic for Liver Cancer (BCLC) stage: A, 40.8 months; B, 36.4 months; C, 10.9 months (P < .01). Median OS for triple-drug therapy also varied significantly by BCLC: A, 28.9 months; B, 18.1 months; C, 9.0 months (P < .01). Single-drug conventional transarterial chemoembolization demonstrated longer median OS compared with triple-drug therapy (P < .05) for BCLC A/B patients. CONCLUSIONS: Single-agent chemoembolization with doxorubicin and ethiodized oil demonstrates acceptable efficacy as measured by TTP and OS. Results compare favorably with traditional triple-drug therapy.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Carcinoma Hepatocelular/terapia , Quimioembolização Terapêutica/métodos , Óleo Etiodado/administração & dosagem , Neoplasias Hepáticas/terapia , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carcinoma Hepatocelular/diagnóstico por imagem , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Quimioembolização Terapêutica/efeitos adversos , Quimioembolização Terapêutica/mortalidade , Distribuição de Qui-Quadrado , Chicago , Cisplatino/administração & dosagem , Progressão da Doença , Doxorrubicina/administração & dosagem , Óleo Etiodado/efeitos adversos , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Mitomicina/administração & dosagem , Análise Multivariada , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
17.
Int J Dermatol ; 54(2): 130-40, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25428226

RESUMO

Squamous cell carcinoma (SCC) is the second most common non-melanoma skin cancer. It originates from epidermal keratinocytes or adnexal structures (such as eccrine glands or pilosebaceous units). We describe the salient features of cutaneous SCC. We also review novel classification schemes proposed during the last decade which attempt to stratify SCC lesions based on prognosis. Biopsy leads to definitive diagnosis. Treatment includes surgical excision; Mohs micrographic surgery produces excellent cure rates and spares the maximal amount of tissue. Other modalities include electrodessication and curettage, cryosurgery, radiotherapy, topical medications, photodynamic therapy, and systemic therapy. Management and follow-up depend on the risk stratification of individual lesions.


Assuntos
Carcinoma de Células Escamosas/classificação , Carcinoma de Células Escamosas/terapia , Neoplasias Cutâneas/classificação , Neoplasias Cutâneas/terapia , Carcinoma de Células Escamosas/epidemiologia , Carcinoma de Células Escamosas/secundário , Humanos , Prognóstico , Neoplasias Cutâneas/epidemiologia , Neoplasias Cutâneas/patologia
18.
J Am Podiatr Med Assoc ; 104(5): 535-8, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25275746

RESUMO

In this article, we present a 25-year-old man who developed an asymptomatic schwannoma on his left lateral heel and review the salient features of this cutaneous condition. A schwannoma is a slowly growing neoplasm of Schwann cell origin. Histology shows high cellularity (Antoni A regions), nuclear palisades (Verocay bodies), and alternating myxoid regions (Antoni B regions). Very few cases have been reported on the foot or ankle. As with this patient, most schwannomas do not cause symptoms, but some result in dysesthesia and nerve dysfunction. Multiple schwannomas may indicate an underlying syndrome such as neurofibromatosis type 1, type 2, and schwannomatosis. The differential diagnosis for schwannoma includes fibrosarcoma, leiomyosarcoma, and neurofibroma. The definitive treatment is surgical excision. This usually results in complete resolution with minimal recurrence, as was the case for this patient.


Assuntos
Neurilemoma/patologia , Neoplasias Cutâneas/patologia , Adulto , Doenças Assintomáticas , Calcanhar , Humanos , Masculino , Neurilemoma/cirurgia , Neoplasias Cutâneas/cirurgia
19.
J Clin Aesthet Dermatol ; 7(8): 35-40, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25161759

RESUMO

The authors describe a 33-year-old man with human immunodeficiency virus who developed erythematous macules on the palms and soles with subsequent headaches, papilledema, and iritis. They review the salient characteristics of neurosyphilis with a focus on human immunodeficiency virus-positive individuals. The incidence of syphilis has increased since the year 2000 in African Americans, Hispanics, and men who have sex with men. Treponema pallidum is the causative agent of this disease-a fastidious, slowly growing, microaerophilic spirochete. Sexual contact is the most common mode of transmission. The rapid plasma reagin, Venereal Disease Research Laboratory assay, and fluorescent treponemal antibody absorption assay are commonly used to diagnose syphilis. The mainstay treatment is penicillin. Special considerations exist in the natural history and management of syphilis in the setting of human immunodeficiency virus.

20.
Int J Dermatol ; 53(2): 137-41, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24320140

RESUMO

In this article, we review the salient features of tinea versicolor and describe the epidemiology, clinical presentation, and histopathology of this mycosis in dark-skinned individuals. Tinea versicolor is caused by an overgrowth of the Malassezia genus. It manifests clinically as asymptomatic hypopigmented macules, hyperpigmented macules, or a combination of the two. Under light microscopy, Malassezia presents as a dimorphic fungus - in both the hyphal and yeast form. Most clinicians have found that the majority of dark-skinned patients present solely with hypopigmented lesions. Under light microscopy, lesions on dark skin involved with tinea versicolor tend to have a thicker stratum corneum, more tonofilaments in the granulosum, and more sequestered melanosomes. Differential diagnosis includes confluent and reticulated papillomatosis, seborrheic dermatitis, pityriasis rosea, pityriasis alba, and vitiligo. Tinea versicolor can be successfully managed in most cases with topical antifungal treatments. Cases of recurrence, such as those seen in immunocompromised patients, may necessitate scheduled oral or topical therapy.


Assuntos
Antifúngicos/uso terapêutico , Malassezia , Pigmentação da Pele , Tinha Versicolor/diagnóstico , Tinha Versicolor/tratamento farmacológico , Diagnóstico Diferencial , Humanos , Recidiva , Tinha Versicolor/epidemiologia , Tinha Versicolor/microbiologia , Tinha Versicolor/patologia
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