Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 27
Filtrar
1.
Contemp Clin Trials ; 139: 107481, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38431134

RESUMO

BACKGROUND: The transition from acute (e.g., psychiatric hospitalization) to outpatient care is associated with increased risk for rehospitalization, treatment disengagement, and suicide among people with serious mental illness (SMI). Mobile interventions (i.e., mHealth) have the potential to increase monitoring and improve coping post-acute care for this population. This protocol paper describes a Hybrid Type 1 effectiveness-implementation study, in which a randomized controlled trial will be conducted to determine the effectiveness of a multi-component mHealth intervention (tFOCUS) for improving outcomes for adults with SMI transitioning from acute to outpatient care. METHODS: Adults meeting criteria for schizophrenia-spectrum or major mood disorders (n = 180) will be recruited from a psychiatric hospital and randomized to treatment-as-usual (TAU) plus standard discharge planning and aftercare (CHECK-IN) or TAU plus tFOCUS. tFOCUS is a 12-week intervention, consisting of: (a) a patient-facing mHealth smartphone app with daily self-assessment prompts and targeted coping strategies; (b) a clinician-facing web dashboard; and, (c) mHealth aftercare advisors, who will conduct brief post-hospital clinical calls with patients (e.g., safety concerns, treatment engagement) and encourage app use. Follow-ups will be conducted at 6-, 12-, and 24-weeks post-discharge to assess primary and secondary outcomes, as well as target mechanisms. We also will assess barriers and facilitators to future implementation of tFOCUS via qualitative interviews of stakeholders and input from a Community Advisory Board throughout the project. CONCLUSIONS: Information gathered during this project, in combination with successful study outcomes, will inform a potential tFOCUS intervention scale-up across a range of psychiatric hospitals and healthcare systems. CLINICALTRIALS: govregistration: NCT05703412.


Assuntos
Esquizofrenia , Telemedicina , Adulto , Humanos , Assistência ao Convalescente , Alta do Paciente , Hospitais , Ensaios Clínicos Controlados Aleatórios como Assunto
2.
J Affect Disord ; 347: 477-485, 2024 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-38065475

RESUMO

BACKGROUND: Individuals with severe mental illness (SMI), including bipolar disorder (BD) and schizophrenia-spectrum disorders (SSD), are at high risk for suicide. However, suicide research often excludes individuals with SMI. The current research examined differences in suicide outcomes (i.e., suicide attempt or death) for adults with and without BD and SSD diagnoses following an emergency department (ED) visit and investigated the efficacy of the Coping Long Term with Active Suicide Program (CLASP) intervention in reducing suicide outcomes among people with SMI. METHODS: 1235 adults presenting with recent suicidality were recruited from 8 different EDs across the United States. Using a quasi-experimental, stepped wedge series design, participants were followed for 52-weeks with or without subsequent provision of CLASP. RESULTS: Participants in the SSD group and the BD group had significantly shorter time to and higher rate of suicide outcomes than participants with other psychiatric diagnoses in all study phases and in non-CLASP phases, respectively. Participants with BD receiving the CLASP intervention had significantly longer time to suicide outcomes than those not receiving CLASP; these differences were not observed among those with SSD. LIMITATIONS: Study limitations include self-reported psychiatric diagnosis, exclusion of homeless participants, and small sample size of participants with SSD. CONCLUSIONS: Participants with SMI were at higher risk for suicide outcomes than participants with other psychiatric diagnoses. CLASP was efficacious among those participants with BD. Psychiatric diagnosis may be a key indicator of prospective suicide risk. More intensive and specialized follow-up mental health treatment may be necessary for those with SSD.


Assuntos
Transtornos Mentais , Esquizofrenia , Adulto , Humanos , Estados Unidos , Prevenção do Suicídio , Visitas ao Pronto Socorro , Estudos Prospectivos , Transtornos Mentais/terapia , Transtornos Mentais/psicologia , Esquizofrenia/terapia
4.
J Anxiety Disord ; 86: 102528, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35063924

RESUMO

BACKGROUND: Panic disorder is a common and disabling psychiatric condition marked by sudden onset of physiological sensations that are appraised as dangerous. A number of studies and reviews have examined the efficacy of psychosocial treatments for PD; however, there is a lack of overarching reports that discuss the strength of evidence for the different psychosocial treatments for PD. This umbrella review provides an overview of systematic reviews and meta-analyses on psychosocial treatments for PD. METHODS: A systematic search and review of the literature was conducted according to PRISMA guidelines. RESULTS: A total of 38 reviews (31 meta-analyses and 7 systematic reviews) were included in the umbrella review. Most of the 38 reviews were focused on the use of CBT, both in-person and internet-based, to treat PD among adults, generally finding it to be an efficacious treatment compared to control conditions. A limited number of the 38 reviews included other age ranges or examined other forms of psychosocial treatments. The methodological quality of most included reviews was rated as critically low according to the AMSTAR-2 rating system. CONCLUSIONS: Future reviews should focus on improving their methodological quality. Although the included reviews supported CBT as an efficacious treatment for reducing panic symptoms among adults, future research could focus on how CBT compares to other psychosocial treatments and the efficacy of CBT for PD among other populations (e.g., children and adolescents) and among diverse cultural groups.


Assuntos
Transtorno de Pânico , Adolescente , Adulto , Criança , Humanos , Metanálise como Assunto , Transtorno de Pânico/terapia
5.
Arch Suicide Res ; 26(3): 1007-1021, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33794112

RESUMO

OBJECTIVE: Intensive longitudinal methods (ILM), such as ecological momentary assessment (EMA) and daily diary, involve repeatedly assessing individuals over short periods of time and have been increasingly used to study suicidal thoughts and behaviors (STBs). Suicidal thoughts have been shown to vary over short periods of time and reports of STBs are subject to negative biases. Therefore, ILM are important methodological tools for studying STBs, ones that capture enhanced precision and realism of data compared to traditional survey methods. The present systematic review aims to provide a comprehensive overview of ILM used to study STBs, including the various EMA and daily diary methodologies used, the feasibility of those methodologies, and the ethical considerations in this line of research. This review also summarizes the characteristics of descriptive STB outcomes specific to the ILM data collection period. METHODS: A thorough search of PubMed and PsycINFO was conducted up to May 2020, resulting in twenty-eight papers reviewed. RESULTS AND CONCLUSIONS: The review of the studies showed that ILM are largely feasible and do not have a negative impact on participants. In addition, the reviewed studies revealed unique aspects of STBs, such as the variability of suicidal thoughts, that suggest that ILM are important methodologies to use when studying STBs. Gaps in the research and recommendations for future research are discussed.HighlightsIt is feasible to use ILM to study suicidality.ILM do not have a negative impact on participants with suicidality.Few studies have used ILM to study suicidality in diverse samples.


Assuntos
Ideação Suicida , Tentativa de Suicídio , Avaliação Momentânea Ecológica , Humanos , Tentativa de Suicídio/prevenção & controle , Inquéritos e Questionários
6.
PLoS One ; 16(12): e0261867, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34941942

RESUMO

OBJECTIVE: Since the start of the COVID-19 pandemic, there have been concerns that social distancing may negatively impact mental health, particularly with regards to loneliness, depressive symptoms, and suicidality. The current study explored how aspects of social distancing, communication, and online support from October 2020 to December 2020 related to loneliness, depressive symptoms, and suicidal ideation. METHOD: Participants (n = 216) who self-identified as having mental health diagnoses were recruited and completed questionnaires online. RESULTS: Findings showed that COVID-19 related social contact, particularly electronic social contact, is associated with decreased loneliness, suicidal ideation, and depression. Online emotional support was significantly associated with decreased loneliness and depressive symptoms. Social distancing practices were not associated with increased loneliness, suicidal ideation, and depression. CONCLUSIONS: Our findings underscore the importance of leveraging electronic methods of social connection, especially among individuals who are at risk for suicide or depression.


Assuntos
COVID-19/psicologia , Depressão/psicologia , Solidão/psicologia , Adulto , COVID-19/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pandemias , Distanciamento Físico , Fatores de Risco , SARS-CoV-2/patogenicidade , Fatores Sociais , Ideação Suicida , Suicídio/psicologia , Inquéritos e Questionários
7.
J Cogn Psychother ; 35(3): 156-166, 2021 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-34362858

RESUMO

Misophonia, a condition marked by extreme intolerance to certain classes of sounds (e.g., respiratory or gustatory noises), has recently attracted increased research attention. As yet there are no evidence-based treatments, although some promising options are under empirical consideration. This paper presents a stress management and exposure therapy-based treatment protocol for adults with misophonia. The protocol details considerations specific to exposure therapy for misophonia, including unique considerations for developing hierarchies and example misophonia exposure exercises and exposure homework. Stress management approaches employed to facilitate engagement with exposure are also described. Two case examples are included, which illustrate the application of the misophonia treatment protocol. The first case describes treatment for a client whose misophonia symptoms are the primary focus and the second case describes treatment for a client whose misophonia symptoms are secondary to relationship difficulties. This protocol can be used to stimulate further treatment research for misophonia and guide treatment for individuals with misophonia.


Assuntos
Terapia Implosiva , Adulto , Atenção , Humanos , Hiperacusia , Ruído , Som
8.
J Affect Disord ; 278: 136-143, 2021 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-32961408

RESUMO

INTRODUCTION: Transgender and gender-diverse (TGD) people experience greatly heightened levels of suicidal ideation (SI) compared to the general population. Therefore, it is imperative to understand the risk and protective factors for SI within this population. METHODS: The present study explored how victimization, discrimination, community connectedness, and pride impact SI cross-sectionally and longitudinally in a sample of TGD adults (N = 180, 55% transgender women, 76.7% Caucasian, M age = 26.01 years). RESULTS: Cross-sectional results showed that experiencing more types of victimization and discrimination at baseline predicted higher SI severity at baseline, while community connectedness and pride at baseline were not predictive of SI severity at baseline. Longitudinal analyses showed that experiencing fewer types of victimization and discrimination during the 1-month follow-up period were associated with a decrease in SI severity from baseline to follow-up. Medium and high levels of community connectedness were also associated with a decrease in SI severity from baseline to follow-up. Pride was not associated with change in SI from baseline to follow-up. LIMITATIONS: Limitations include the limited racial/ethnic diversity of the sample and that frequency of experiencing victimization and discrimination was not assessed. CONCLUSIONS: These results suggest victimization and discrimination are strong predictors of SI severity within this population, and the factors of victimization, discrimination, and TGD-community connectedness impact change in SI severity across time. These findings provide evidence for the importance of anti-discrimination laws that apply to TGD people, as well as the utility of connecting TGD clients to the TGD community.


Assuntos
Ideação Suicida , Pessoas Transgênero , Adulto , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Fatores de Proteção , Fatores de Risco
9.
LGBT Health ; 7(8): 457-460, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33090075

RESUMO

Purpose: We examined whether the relationship between minority stressors (victimization and discrimination) and suicide attempts (SAs) was moderated by gender identity-specific protective state policies in a sample of transgender and gender-diverse (TGD) adults. Methods: TGD adults (n = 133) were recruited online and completed questionnaires. Results: Protective state policies moderated the relationship between minority stressors and SAs, with a significant positive association between minority stressors and SAs at low, but not medium and high, policy scores. Conclusion: A lack of protective state policies may be a risk factor in the relationship between minority stressors and SAs among TGD individuals.


Assuntos
Vítimas de Crime/psicologia , Grupos Minoritários/psicologia , Políticas , Sexismo/psicologia , Minorias Sexuais e de Gênero/psicologia , Estresse Psicológico/psicologia , Tentativa de Suicídio/estatística & dados numéricos , Adulto , Vítimas de Crime/estatística & dados numéricos , Feminino , Humanos , Masculino , Grupos Minoritários/estatística & dados numéricos , Fatores de Risco , Sexismo/estatística & dados numéricos , Minorias Sexuais e de Gênero/estatística & dados numéricos , Estresse Psicológico/epidemiologia , Inquéritos e Questionários , Pessoas Transgênero/psicologia , Pessoas Transgênero/estatística & dados numéricos , Estados Unidos/epidemiologia
10.
Psychiatry Res ; 284: 112661, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31708251

RESUMO

Pain tolerance and dissociation have individually been shown to be risk factors for suicidal behaviors. The aim of the current study was to investigate how dissociation and physiological pain tolerance influence the relation between suicidal thoughts and behaviors. The sample consisted of 70 undergraduate college students who completed self-report measures of suicidality and dissociation and an electrical stimulation task to measure physiological pain tolerance. Results showed that dissociation and suicidal ideation, but not pain tolerance, were independently associated with increased suicide attempts. A three-way interaction of suicidal ideation, physiological pain tolerance, and dissociation statistically predicted number of suicide attempts, with an increased number of suicide attempts associated with high suicidal ideation and dissociation, regardless of pain tolerance. These results suggest that dissociation plays a significant role in predicting suicide attempts, perhaps by engendering a state of disconnect from one's body.


Assuntos
Transtornos Dissociativos/psicologia , Medição da Dor/psicologia , Limiar da Dor/fisiologia , Limiar da Dor/psicologia , Ideação Suicida , Adolescente , Adulto , Transtornos Dissociativos/diagnóstico , Feminino , Humanos , Masculino , Medição da Dor/métodos , Medição da Dor/tendências , Valor Preditivo dos Testes , Fatores de Risco , Autorrelato , Estudantes/psicologia , Tentativa de Suicídio/prevenção & controle , Tentativa de Suicídio/psicologia , Universidades/tendências , Adulto Jovem
12.
J Cutan Pathol ; 46(12): 898-904, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31373032

RESUMO

BACKGROUND: Melanocytic acral nevi have a series of distinguishing features, including their location, patient age at onset, clinical progression, and histological findings. In particular, histopathological analysis often reveals a melanocytic acral nevus with intraepidermal ascent of cells (MANIAC nevus), which in some cases can be mistaken for atypia or malignancy. AIM: This study describes the clinicopathological characteristics of acral nevi in patients under 18 years old and contrasts the clinical and histological features between MANIAC vs non-MANIAC nevi. METHODS: This was a retrospective observational study, performed in our department in the decade between January 2007 and January 2017. We included patients younger than 18 years of age who were subjected to the removal of melanocytic acral nevi. RESULTS: A total of 70 patients were studied. 54.2% (38/70) were females and 45.8% (32/70) were males. With regard to the type of nevus, 34 were compound, 27 were junctional, and 9 were predominantly intradermal lesions. We identified a total of 41 MANIAC nevi and 29 non-MANIAC nevi. Statistically significant differences between these two groups were identified in nevus size (larger in MANIAC) and the frequency of compound nevi (higher in the MANIAC group), but not in the remainder of the histological parameters studied.


Assuntos
Melanoma/patologia , Nevo Intradérmico/patologia , Nevo Pigmentado/patologia , Nevo/patologia , Adolescente , Assistência ao Convalescente , Criança , Pré-Escolar , Diagnóstico Diferencial , Feminino , Doenças do Pé/patologia , Humanos , Masculino , Nevo Pigmentado/epidemiologia , Nevo Pigmentado/cirurgia , Estudos Retrospectivos , Neoplasias Cutâneas/patologia
14.
An. pediatr. (2003. Ed. impr.) ; 88(6): 309-314, jun. 2018. tab, ilus
Artigo em Espanhol | IBECS | ID: ibc-176954

RESUMO

INTRODUCCIÓN: El eccema de manos es una forma frecuente de eccema en adultos. Su diagnóstico en ocasiones es complejo debido a la existencia de diferentes clasificaciones diagnósticas. Existen pocos trabajos que estudien el eccema de manos y su clasificación en niños. MATERIAL Y MÉTODO: Se ha identificado a 389 niños entre 0 y 16 años remitidos a la Unidad de Alergia Cutánea de nuestro servicio para estudio con pruebas epicutáneas en el periodo 1996-2016. De entre todos los casos se han seleccionado 42 casos con dermatitis localizada exclusivamente en la mano (10,8% de todos los niños remitidos). En todos los casos se realizaron pruebas epicutáneas parchando la batería estándar, así como baterías adicionales en función de la sospecha clínica. Se recogieron datos epidemiológicos (edad, sexo, antecedentes de dermatitis atópica...), así como clínicos (localización de las lesiones). RESULTADOS: De los 42 niños remitidos con dermatitis de la mano, 25 (60,5%) eran niñas y 17 (40,5%) niños. La edad media de los pacientes con dermatitis de la mano fue de 10,6 ± 3,9 años. El diagnóstico definitivo tras la realización de pruebas epicutáneas fue dermatitis atópica en 15 casos, dermatitis alérgica de contacto en 14 pacientes, eccema endógeno vesiculoso en 6 casos, eccema endógeno hiperqueratósico en 5 casos y dermatitis irritativa de contacto en 2 casos. Los alérgenos detectados más frecuentes fueron tiomersal (9 casos), niquel (5 casos), mercurio (5 casos) y cobalto (4 casos). CONCLUSIÓN: El eccema de manos es una entidad frecuente en niños. La causa más frecuente es la dermatitis atópica, aunque no son infrecuentes los casos de dermatitis alérgica de contacto que se manifiestan como eccema de manos. Todo niño con eccema de manos en el que se sospeche una causa alérgica debe ser remitido para realización de pruebas epicutáneas


INTRODUCTION: Hand eczema is a frequent disease in adults. Diagnosing the cause of hand eczema is difficult due to different classifications. There is lack of evidence on hand eczema and its causes in children. MATERIAL AND METHOD: A total of 389 children between 0 and 16 years were identified between 1996 and 2016, from whom 42 (10.8%) with exclusively hand eczema were selected. In all cases a standard battery of epicutaneous patch tests was performed, as well as additional batteries depending on the clinical suspicion. The clinical and epidemiological features of these children were recorded and compared against children with eczema in other locations. RESULTS: The 42 children with hand eczema included 25 (60.5%) girls, and 17 (40.5%) boys, with a mean age of 10.6 +- 3.9 years, and did not differ from that of children with eczema in other locations. The definitive diagnosis after patch-testing was Atopic Dermatitis in 15 cases, Allergic Contact Dermatitis in 14 patients, Endogenous Vesiculous Eczema in 6 cases, Endogenous Hyperkeratotic Eczema in 5 cases, and Irritant Contact Dermatitis in 2 cases. The most frequent allergens detected were thiomersal (9 cases), nickel (5 cases), mercury (5 cases), and cobalt (4 cases). CONCLUSION: Hand eczema is a common condition in children. The most common cause is atopic dermatitis, although cases of allergic contact dermatitis manifesting as hand eczema are not uncommon. Any child with eczema of hands in whom an allergic cause is suspected should be referred for patch- testing


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Criança , Adolescente , Eczema/diagnóstico , Eczema/epidemiologia , Dermatoses da Mão/diagnóstico , Dermatoses da Mão/epidemiologia , Estudo Observacional , Eczema/imunologia , Estudos Epidemiológicos , Dermatoses da Mão/imunologia , Testes do Emplastro , Estudos Retrospectivos , Centros de Atenção Terciária , Testes Cutâneos
15.
An Pediatr (Engl Ed) ; 88(6): 309-314, 2018 Jun.
Artigo em Espanhol | MEDLINE | ID: mdl-28838840

RESUMO

INTRODUCTION: Hand eczema is a frequent disease in adults. Diagnosing the cause of hand eczema is difficult due to different classifications. There is lack of evidence on hand eczema and its causes in children. MATERIAL AND METHOD: A total of 389 children between 0 and 16 years were identified between 1996 and 2016, from whom 42 (10.8%) with exclusively hand eczema were selected. In all cases a standard battery of epicutaneous patch tests was performed, as well as additional batteries depending on the clinical suspicion. The clinical and epidemiological features of these children were recorded and compared against children with eczema in other locations. RESULTS: The 42 children with hand eczema included 25 (60.5%) girls, and 17 (40.5%) boys, with a mean age of 10.6 +- 3.9 years, and did not differ from that of children with eczema in other locations. The definitive diagnosis after patch-testing was Atopic Dermatitis in 15 cases, Allergic Contact Dermatitis in 14 patients, Endogenous Vesiculous Eczema in 6 cases, Endogenous Hyperkeratotic Eczema in 5 cases, and Irritant Contact Dermatitis in 2 cases. The most frequent allergens detected were thiomersal (9 cases), nickel (5 cases), mercury (5 cases), and cobalt (4 cases). CONCLUSION: Hand eczema is a common condition in children. The most common cause is atopic dermatitis, although cases of allergic contact dermatitis manifesting as hand eczema are not uncommon. Any child with eczema of hands in whom an allergic cause is suspected should be referred for patch- testing.


Assuntos
Eczema/diagnóstico , Eczema/epidemiologia , Dermatoses da Mão/diagnóstico , Dermatoses da Mão/epidemiologia , Adolescente , Criança , Pré-Escolar , Eczema/imunologia , Estudos Epidemiológicos , Feminino , Dermatoses da Mão/imunologia , Humanos , Lactente , Masculino , Testes do Emplastro , Prevalência , Estudos Retrospectivos , Centros de Atenção Terciária
16.
Pediatr Dermatol ; 34(5): 535-539, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28730653

RESUMO

BACKGROUND/OBJECTIVES: Footwear dermatitis is a form of contact dermatitis resulting from exposure to shoes. There have been only small studies regarding foot contact dermatitis in children. The present study was undertaken to define the prevalence and epidemiologic and clinical features of shoe dermatitis in children. METHODS: A retrospective study was undertaken of all children referred for patch testing between 1996 and 2015. Children with dermatitis limited to the feet were selected. RESULTS: We collected data from 389 children younger than 16 years, 52 of whom (13.4%) were referred with dermatitis exclusively on the feet. Diagnosis after patch testing was allergic contact dermatitis in 23 children (44.2%), atopic eczema in 12 (23.1%), juvenile plantar dermatosis in 8 (15.4%), dyshidrotic eczema in 6 (11.5%), irritant contact dermatitis in 2 (3.8%), and tinea pedis in 1 (1.9%). The most frequent allergens were potassium dichromate, thimerosal, cobalt chloride, mercapto mix, colophonium, mercury, and nickel(II) sulfate. CONCLUSION: Allergic contact dermatitis caused by footwear is a common cause of foot dermatitis in children. Children with foot dermatitis should be referred for patch testing when an allergic origin is suspected.


Assuntos
Dermatite Alérgica de Contato/epidemiologia , Dermatoses do Pé/epidemiologia , Sapatos/efeitos adversos , Adolescente , Alérgenos , Criança , Pré-Escolar , Dermatite Alérgica de Contato/etiologia , Feminino , , Dermatoses do Pé/diagnóstico , Dermatoses do Pé/etiologia , Humanos , Lactente , Masculino , Testes do Emplastro , Prevalência , Estudos Retrospectivos
17.
Rev. esp. patol ; 49(1): 23-26, ene.-mar. 2016. ilus
Artigo em Inglês | IBECS | ID: ibc-149061

RESUMO

Among crateriform squamous proliferation, keratoacanthoma is considered as a squamous cell carcinoma or as a non-malignant, self-healing lesion that frequently becomes malignant. To date, published cases of neoplasms originating from keratoacanthoma are always conventional squamous cell carcinomas. Acantholytic squamous cell carcinoma arising in keratoacanthomas has not been previously reported. We present two crater-shaped nodular lesions on the face of elderly patients with clinical and histopathological features of keratoacanthoma with transformation areas to acantholytic squamous cell carcinoma. In the immunohistochemical study, Ki-67 and p63 immunostaining supports the diagnosis of acantholytic squamous cell carcinoma ex-keratoacanthoma. We suggest that E-cadherin expression and vimentin negativity could probably be related with less aggressive behaviour and a better prognosis (AU)


Dentro de las proliferaciones escamosas crateriformes, el queratoacantoma se considera como un carcinoma escamoso o como una lesión benigna autocurativa que frecuentemente se vuelve maligna. Las neoplasias descritas que se originan del queratoacantoma son siempre carcinomas escamosos convencionales. Carcinomas escamosos acantolíticos originados en queratoacantomas no se han descrito en la literatura. Presentamos 2 nódulos crateriformes en la cara de ancianos con características clínicas e histopatológicas de queratoacantoma con áreas de transformación a carcinoma escamoso acantolítico. En el estudio inmunohistoquímico, la expresión de Ki-67 y p63 apoya el diagnóstico de carcinoma escamoso acantolítico ex-queratoacantoma. Nosotros hipotetizamos que la expresión de E-cadherina y la negatividad de vimentina están probablemente relacionadas con menor agresividad y excelente pronóstico en estos pacientes (AU)


Assuntos
Humanos , Masculino , Feminino , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/patologia , Ceratoacantoma/diagnóstico , Ceratoacantoma/patologia , Caderinas/análise , Caderinas , Prognóstico , Imuno-Histoquímica/métodos , Vimentina , Crioterapia/instrumentação , Crioterapia/métodos , Crioterapia
18.
Int J Dermatol ; 53(11): 1331-8, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24961281

RESUMO

BACKGROUND: Mycosis fungoides (MF) is the most frequent type of cutaneous T cell lymphoma. Its clinicopathological spectrum is wide, and the resulting diversity makes it difficult to establish a differential diagnosis among pityriasis lichenoides (PL), lymphomatoid papulosis (LyP), and atypical MF. OBJECTIVES: This study describes four patients with longstanding PL-like lesions, in whom clinicopathological correlations contributed towards the establishment of definitive diagnoses of MF. METHODS: The clinical histories of the four patients were reviewed. Skin biopsies were processed by hematoxylin and eosin staining and immunohistochemical techniques. Disease spread was studied according to laboratory tests, complete blood counts, biochemical parameters, lactate dehydrogenase, lymphocyte populations, and Sézary cells. Thoracoabdominopelvic computed tomography was performed. RESULTS: The four patients included two women and two men, aged 35-70 years, all of whom had chronic skin lesions located mainly on the trunk and extremities. In three patients, initial clinicopathological correlations led to the diagnosis of PL; further biopsies were required to diagnose MF. In all patients, the atypical lymphocytic infiltrate showed a lichenoid or perivascular distribution with focal epidermotropism and parakeratosis. All cases proved positive for CD4 and CD3, and negative for CD20, CD8, and CD30. Polymerase chain reaction showed monoclonal-type T cells in one and polyclonal infiltrates in three patients. All patients were initially treated with topical corticosteroids and photochemotherapy. None of the treatments proved completely successful, but subsequent tests have yielded no evidence of disease progression in any patient. CONCLUSIONS: In patients with clinical features of longstanding PL and histological findings consistent with MF, differential diagnosis must include PL, LyP, and papular MF. As some forms of PL evolve towards MF and PL-like forms of MF, these patients should undergo regular follow-up and repeated biopsies in order to discard diagnoses of atypical forms of MF.


Assuntos
Antígenos CD/análise , Papulose Linfomatoide/patologia , Micose Fungoide/química , Micose Fungoide/patologia , Pitiríase Liquenoide/patologia , Pele/patologia , Adulto , Idoso , Biópsia , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Micose Fungoide/terapia
19.
Am J Dermatopathol ; 35(8): 847-50, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23974221

RESUMO

Palisaded neutrophilic granulomatous dermatitis (PNGD) is a rare neutrophilic dermatosis that shows a broad clinical and histopathological spectrum. The clinical presentation of PNGD varies from asymptomatic papules, to nodules, to annular plaques. The most common clinical presentation is erythematous papules on the extensor surface of extremities, especially fingers and elbows. Histopathological findings demonstrate a spectrum of changes that reflect the evolution of the lesions, from only sparse mixed perivascular infiltrates to interstitial or palisaded granuloma formation with dermal fibrosis. The cause of PNGD is unknown, but there is a prominent association with systemic conditions, particularly with autoimmune diseases, representing rheumatoid arthritis and systemic lupus erythematosus, the most common associations. It has also been described associated to systemic sclerosis, sarcoidosis, systemic vasculitis, inflammatory bowel disease, and lymphoproliferative disorders, and also drugs have been implicated. Recently, it has been described the potential association with tumor necrosis factor alpha inhibitors. This dermatosis should be considered as a marker of systemic disease and particularly it should be considered in patients with history of autoimmune disorders who present with papular eruptions on the extremities.


Assuntos
Dermatite/etiologia , Espondilite Anquilosante/complicações , Adalimumab , Adulto , Anticorpos Monoclonais Humanizados/uso terapêutico , Antirreumáticos/uso terapêutico , Artrite Reumatoide/complicações , Artrite Reumatoide/tratamento farmacológico , Dermatite/patologia , Etanercepte , Feminino , Granuloma/etiologia , Granuloma/patologia , Humanos , Imunoglobulina G/uso terapêutico , Neutrófilos/patologia , Receptores do Fator de Necrose Tumoral/uso terapêutico , Espondilite Anquilosante/tratamento farmacológico
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...