Lepromatous leprosy simulating rheumatoid arthritis - Report of a neglected disease

Abstract Brazil has the second largest number of leprosy cases in the world; nevertheless, late diagnosis is common. We report the case of a male patient with pain and numbness in both hands and feet for six years with positive rheumatoid factor and anticardiolipin under rheumatoid arthritis treatment for five years. Examination revealed diffuse cutaneous infiltration and leonine facies, characteristic features of lepromatous leprosy. Autoantibodies such as rheumatoid factor and anticardiolipin are markers of rheumatic autoimmune diseases, but their presence is also described in leprosy. We report the present case in order to alert health professionals to remember leprosy, even in areas where the disease is considered eliminated as a public health problem, avoiding misinterpretations of serologic findings and misdiagnosis.

Hidradenitis suppurativa: epidemiological study of cases diagnosed at a dermatological reference center in the city of Bauru, in the Brazilian southeast State of São Paulo, between 2005 and 2015

Abstract: Background: Hidradenitis is a chronic inflammatory disease of the hair follicles. A treatment is necessary due to chronicity and psychological changes that patient present. Objective: To investigate epidemiological aspects and elaborate a risk group profile, promote early diagnosis and contribute to the knowledge about the disease. Methods: This cross-sectional descriptive study with retrospective analysis of medical records of 194 patients diagnosed with hidrosadenitis in a dermatological reference center in the city of Bauru (SP) between 2005 and 2015. Results: Females accounted for 74% of cases. The age at diagnosis ranged from 10 to 67 years and the majority was within the 3rd and 4th decade of life. It occurred Association with diabetes mellitus in 33%, obesity in 55% and smoking in 61% was observed. Mean time between the onset of the disease and diagnosis was nine years. Hurley stage II was the most common at diagnosis. The therapeutic option mostly used in Hurley I and II was systemic antibiotics and in Hurley III was surgery. Study limitations: the main limitation of this study is its retrospective design, which does not allow the true clinical confirmation of the disease by investigators. Conclusion: we outlined the following profile: women, caucasian, between 3rd and 4th decade of life, associated with obesity, smoking, late diagnosis and multiple potential therapeutic modalities. We highlight the importance of studies like this in order to identify risk groups and encourage early diagnosis.

Trichotillomania: a case report with clinical and dermatoscopic differential diagnosis with alopecia areata

ABSTRACT Trichotillomania is a psychodermatologic disorder characterized by uncontrollable urge to pull one's own hair. Differential diagnoses include the most common forms of alopecia such as alopecia areata. It is usually associated with depression and obsessive-compulsive disorder. Trichotillomania treatment standardization is a gap in the medical literature. Recent studies demonstrated the efficacy of N-acetylcysteine (a glutamate modulator) for the treatment of the disease. We report the clinical case of a 12-year-old female patient who received the initial diagnosis of alopecia areata, but presented with clinical and dermoscopic features of trichotillomania. She was treated with the combination of psychotropic drugs and N-acetylcysteine with good clinical response. Due to the chronic and recurring nature of trichotillomania, more studies need to be conducted for the establishment of a formal treatment algorithm.

Líquen plano pilar: a importância do diagnóstico precoce / Lichen planopilaris: the importance of early diagnosis

O líquen plano pilar é desordem rara da ordem das alopecias cicatriciais primárias. Descreve- se um caso de paciente do sexo feminino, portadora de placas eritêmato-descamativas e plugues foliculares em região frontoparietal bilateralmente, associados a teste de tração positivo. Após biópsia compatível com líquen plano pilar, a paciente foi tratada com prednisona associada a clobetasol, apresentando repilação da área acometida. O tratamento dessa patologia é um desafio devido à escassez de dados sobre eficácia das terapêuticas e constante recidiva. Trata-se de quadro irreversível se não for tratado precocemente. É descrito um caso clássico de líquen plano pilar com boa resposta terapêutica, destacando- -se a importância do diagnóstico precoce, já que em fase inicial a maioria das alopecias cicatriciais é não cicatricial, devendo, por esse motivo, ser manejada como emergência em tricologia.

Lichen planopilaris is a rare disorder that belongs to the primary scarring alopecia type. The present study describes the case of a female patient bearing desquamative erythematous plaques and follicular plugs bilaterally in the frontoparietal region, associated with positive pull test. The biopsy's result was consistent with lichen planopilaris and the patient was treated with prednisone associated with clobetasol, with regrowth of the hair in the affected area. The treatment of this pathology is a challenge due to the lack of data on efficacy of therapies and constant recurrence. The picture is irreversible if not treated early. This paper describes a classic case of a case of lichen planopilaris with good therapeutic response, highlighting the importance of early diagnosis, due to the fact that most cicatricial alopecias do not produce scarring in their initial stage and should for this reason be managed as an emergency in trichology.

Acrokeratosis verruciformis of Hopf - Case report

Abstract: A 54 year-old woman with a 3-year history of rheumatoid arthritis (RA) consulted us because of weight loss, fever and skin eruption. On physical examination, erythematous plaques with a pseudo-vesicular appearance were seen on the back of both shoulders. Histological examination was consistent with rheumatoid neutrophilic dermatosis (RND). After three days of prednisone treatment, the skin eruption resolved. RND is a rare cutaneous manifestation of seropositive RA, characterized by asymptomatic, symmetrical erythematous plaques with a pseudo-vesicular appearance. Histology characteristically reveals a dense, neutrophilic infiltrate with leucocitoclasis but without other signs of vasculitis. Lesions may resolve spontaneously or with RA treatment. This case illustrates an uncommon skin manifestation of active rheumatoid arthritis.

Carcinoma de células de Merkel: apresentação clínica, dermatoscópica e imuno-histoquímica de um tumor raro / Merkel cell carcinoma: clinical, dermoscopic and immunohistochemicalaspects of a rare tumor

Carcinoma de células de Merkel é tumor cutâneo neuroendócrino raro e altamente agressivo. Objetiva-se neste artigo alertar para a possibilidade desse diagnóstico, geralmente não considerado hipótese inicial em neoplasias cutâneas. Relatamos dois casos de pacientes do sexo feminino, idosas com queixa de nódulo único eritematoso na face. Aventaram-se hipóteses diagnósticas de carcinoma basocelular e melanoma amelanótico. À dermatoscopia foi evidente a presença de telangiectasias O exame histopatológico da biópsia incisional diagnosticou carcinoma de células de Merkel. Essa neoplasia ocorre tipicamente em pacientes brancos, acima de 65 anos, manifestando-se como nódulo eritêmato-violáceo, de crescimento rápido, sendo a imuno-histoquímica essencial para o diagnóstico.

The Merkel cell carcinoma is a rare and highly aggressive neuroendocrine skin tumor. The purpose of this paper is to warn of the possibility of this diagnosis, usually not considered as an initial hypothesis in cutaneous neoplasias. The authors describe two cases of elderly female patients with complaints of a single erythematous nodule on the face. The diagnoses of basal cell carcinoma and amelanotic melanoma were considered. The presence of telangiectasias was evident at dermoscopy. The incisional biopsy's histology evidenced Merkel cell carcinomas. This neoplasia typically occurs in Caucasian patients with over 65 years of age, emerging as an erythematous-purplish nodule of rapid growth, with immunohistochemistry being essential for the diagnosis.

O tratamento bem-sucedido com fototerapia UVB banda estreita em um caso raro de líquen escleroso extragenital generalizado / Successful treatment of a rare case of widespread extragenital lichen sclerosus with narrow band UVB phototherapy

O líquen escleroso é patologia incomum acometendo tanto região genital quanto extragenital, constituindo apresentação atípica da doença. O uso de corticosteroides tópicos é considerado primeira linha para tratamento da doença genital. Lesões extragenitais são menos sensíveis a essa terapêutica. Relata-se caso de líquen escleroso em paciente do sexo feminino, de 82 anos, com envolvimento extragenital generalizado e tratamento bem-sucedido com fototerapia UVB de banda estreita. O líquen escleroso é dermatose inflamatória crônica, e as formas disseminadas da doença são raras e sem consenso em relação ao tratamento da forma extragenital. A opção pela terapia com UVB de banda estreita baseou-se nos relatos da literatura.

Lichen sclerosus is an uncommon condition affecting both the genital and extragenital region, the latter constituting an atypical occurrence of the disorder. The use of topical corticosteroids is considered the first-line treatment of this genital disease. Extragenital lesions are less sensitive to this therapy. The present study describes a case of lichen sclerosus in an 82-year-old female patient, with widespread extragenital involvement and successful treatment with narrow band UVB phototherapy. Lichen sclerosus is a chronic inflammatory dermatosis and disseminated forms of the condition are rare, with an absence of consensus on the treatment of the extragenital form. The choice for narrow band UVB therapy was based on the literature.

Hanseníase históide símile: desafio diagnóstico / Histoid like leprosy: diagnostic challenge

Em 1963, Wade descreveu a hanseníase histoide, que acometia pacientes previamente tratados com dapsona.Caracteriza-se por lesão com aspecto queloideano, na histopatologia vemos histiócitos fusiformes e um grande número de bacilos. Relata-se caso de hanseníase dimorfa virchoviana com padrão de lesão históide, um verdadeiro desafio diagnóstico, a fim de atentar para manifestações atípicas dessa doença e reforçar a importância da confirmação histológica de casos suspeitos de hanseníase históide.

In 1963, Wade described Histoid Leprosy, that affected patients previously treated with dapsone. This type of leprosy is characterized by keloid-like lesions, in which spindle histiocytes and a large number of bacilli can be seen in the histopathology. A case of borderline lepromatous leprosy with histoid pattern is described, a true diagnostic challenge, in order to attempt to atypical manifestations of the disease and reinforce the importance of histological confirmation in suspected cases of histoid leprosy.