Ingenol mebutate treatment for actinic cheilitis: clinical, histopathological and p53 profile of 14 cases.

INTRODUCTION: Actinic cheilitis (AC) is part of a spectral disease of keratinocyte carcinomas considered by some authors an early stage of in situ squamous cell carcinoma. Treatment options for AC can be lesion and field-directed therapies. Ingenol mebutate (IM) induces rapid and direct cell death and immune responses being able to destruct dysplastic cells. MATERIALS AND METHODS: This study enrolled patients with AC to receive IM gel 0.015% for self-application on the lower lip for 3 consecutive days. A biopsy was performed before and after treatment for histopathological and immunohistochemical evaluation. Local skin reactions (LSR) were evaluated. The level of significance considered was 5%. RESULTS: Fourteen patients were enrolled. All LSR had a complete resolution for up to 2 weeks. The most common adverse events were burning sensation, angular cheilitis, and pain. There was an improvement of more than 80% in patients' subjective evaluation. There was no statistically significant histopathological response since all patients remained with mild dysplasia. No reduction in the P53 expression was observed in the current study. CONCLUSIONS: Despite being a safe therapeutic method, the absence of histopathological or immunohistochemical response suggests that clinical improvement may not be accompanied by histopathological cure for AC treated with IM.

Subacute cutaneous lupus erythematosus leukoderma treated with melanocyte-keratinocyte transplantation procedure.

Depigmented lesions may occur as postinflammatory sequelae of subacute cutaneous lupus erythematosus (SCLE), leading to great psychosocial impact. A 53-year-old male patient presented with post-SCLE depigmented facial lesions after five years of disease stability. We proposed surgical treatment with melanocyte-keratinocyte transplantation procedure (MKTP), and after five months the patient achieved 90% repigmentation, without Koebner phenomenon (KP). In theory, KP is a possible complication of MKTP procedure since the preparation of the receptor area involves the use of dermabrasion. In an attempt to avoid it, we suggest to maintain the treatment of the underlying disease and wait for a minimum period of disease stability before the procedure.

Dermoscopy in the diagnosis of juvenile xanthogranuloma.

Juvenile xanthogranuloma is the most common form of non-Langerhans cell histiocytosis. It manifests clinically as a red-yellow papule, usually showing spontaneous remission. The diagnosis is based on clinical and histological findings. We report the use of dermoscopy ("setting sun" pattern) as an adjuvant tool in the diagnosis of juvenile xanthogranuloma in a female patient presenting with a 2-month history of a pre-auricular papule.

Dermoscopy in the diagnosis of juvenile xanthogranuloma

Abstract: Juvenile xanthogranuloma is the most common form of non-Langerhans cell histiocytosis. It manifests clinically as a red-yellow papule, usually showing spontaneous remission. The diagnosis is based on clinical and histological findings. We report the use of dermoscopy ("setting sun" pattern) as an adjuvant tool in the diagnosis of juvenile xanthogranuloma in a female patient presenting with a 2-month history of a pre-auricular papule.

Distribuição dos diagnósticos de lesões pré-neoplásicas e neoplásicas de pele no Hospital Universitário Evangélico de Curitiba / Distribution of diagnosis of neoplastic and preneoplastic skin lesions at Evangelical Hospital in Curitiba

FUNDAMENTOS: O câncer de pele é mais comum nas populações de pele branca. Quanto aos tumores de pele, o CBC é o mais freqüente. Das lesões pré-cancerosas, a que ocorre com mais freqüência é a ceratose actínica, que se torna maligna em percentual variável de 20 a 25% dos casos. OBJETIVO: Analisar a ocorrência e os locais do corpo mais acometidos por lesões cancerosas de pele e também pela ceratose actínica. MÉTODOS: Estudo retrospectivo que analisou, em 2002, biópsias de pele de 491 pacientes com diagnóstico de ceratose actínica, CBC, CEC ou melanoma, resultando em 531 diagnósticos registrados pelo Serviço de Anatomia Patológica de um hospital universitário de Curitiba. RESULTADOS: Em amostra de 270 (54,99%) mulheres e 221 (45,01%) homens, o CBC (58,46% - 114/195) e o melanoma (61,5% - 16/26), assim como a ceratose actínica (60,79% - 107/176), acometeram mais o sexo feminino. O CEC prevaleceu no sexo masculino (64,39% - 61/94). Dos 531 diagnósticos, 62,90% (334) apontaram tumores malignos de pele, sendo o CBC o mais encontrado (39,74% - 211), e correspondendo 37,10% (197) à ceratose actínica. Quanto à localização das lesões, houve maior acometimento na extremidade cefálica, que atingiu 50,47% (268) dos casos. Em relação ao melanoma, três localizações foram mais prevalentes (dorso, região malar e pé), cada uma com 11,50% (3/26). CONCLUSÕES: O CBC foi o tumor mais encontrado nos laudos analisados. O sexo feminino foi o mais acometido. Houve maior prevalência nas sexta e sétima décadas. A extremidade cefálica foi a localização mais comum das lesões estudadas, com exceção do melanoma, que ocorreu mais no dorso, região malar e pé.