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Abstract:The trichilemmal carcinoma is a rare tumor that usually occurs on sun-exposed skin, especially on the face, scalp, neck and back of hands, mainly in elderly subjects but commonly between the 4th and 9th decades of life. It is not a gender-based illness. This study shows a difficult to treat case of recurrent trichilemmal carcinoma on the same location of a basal-cell carcinoma previously treated with surgery and radiotherapy. Keywords: Neoplasms, adnexal and skin appendage; Neoplasms, radiation-induced; Skin neoplasms Resumo: O carcinoma triquilemal é um tumor raro, que ocorre, geralmente, na pele exposta ao sol, principalmente face, couro cabeludo, pescoço e dorso das mãos, em indivíduos idosos, entre a 4ª e 9ª décadas de vida, sem predilação por sexo. O presente estudo mostra um caso de carcinoma triquilemal, recidivado, de difícil tratamento, em mesma topografia de um carcinoma basocelular tratado previamente com cirurgia e radioterapia. Palavras-chave: Neoplasias cutâneas; Neoplasias induzidas por radiação; Neoplasias de anexos e de apêndices cutâneos

BACKGROUNDMelanoma is one of the conditions with greater increase in incidence worldwide in recent decades. It is a skin cancer with potential high lethality and predominates in Caucasian adults. Treatment of primary cutaneous melanoma is essentially surgical and search for sentinel lymph node can modify the aggressiveness of the treatment.OBJECTIVETo analyze the epidemiological profile of patients diagnosed with primary cutaneous melanoma, histopathological features and compare with literature data.METHODSThis is a retrospective, observational, single-center, case series study of patients with primary cutaneous melanoma, who underwent surgery between January 2008 and December 2013. The parameters include: Age, sex, clinical stage, date of surgery, tumor location, histological subtype, condition of surgical margins, Breslow thickness, mitotic index, presence of ulceration and metastasis on admission.RESULTSWe included 321 melanoma patients who were treated at Hospital Erasto Gaertner. The population consisted of 58.9% females and 41.1% males with an average age of 52.8 ± 16.3 years. As for the clinical stage, 51.1% were in the initial stage, 24.3% in the clinical stage II (A, B and C), 21.2% in clinical stage III and 3.4% with distant metastases. The most frequent location of the primary melanoma was the trunk, and the histological subtype was superficial spreading pattern. Intermediate and thick melanomas were the most frequent.STUDY LIMITATIONSThis is a retrospective study and some information and data could be incomplete or absent.CONCLUSIONThe diagnosis and treatment of melanoma in early stages provides less morbidity and improved survival of patients. Understanding the biological behavior of tumor and knowing the local epidemiology guide health strategies.

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