Tumoral melanosis is a histological term used to refer to a nodular accumulation of melanophages in the dermis, which clinically arises as a pigmented lesion. It is usually associated with the regression of melanomas or of other melanocytic lesions. The authors present the case of a 45-year old man/woman with a pigmented macule on his/her left leg. The lesion was completely excised and diagnosed as a tumoral melanosis.

Keywords: MELANOMA; SKIN NEOPLASMS; DERMATOSCOPY

Dermatofibrosarcoma protuberans is an uncommon and relapsing fibrohistiocytic tumor of intermediate malignancy. Its rarest variant is known as atrophic, morphea type or dermatofibrosarcoma non protuberans and its clinical diagnose is difficult. There are not well established dermatoscopic criteria, so the diagnosis is histopathologic. There are advances in immunohistochemical and genetic that help the diagnosis and complete surgical excision. It is reported a case of atrophic dermatofibrosarcoma in a 27 years patient ant it is reviewed the clinical, dermoscopic, histological and genetic aspects.

Keywords: DERMOSCOPY; NEOPLASMS; DERMATOFIBROSARCOMA

The poroid hidradenoma is a rare benign intradermal neoplasm rare that is poorly described in the literature. It usually affects elderly individuals and is characterized as a solitary, painless and well-circumscribed nodule. The diagnosis is confirmed by the histological characteristics of the hidradenomas and poromas. The treatment corresponds to complete surgical excision, thus avoiding recurrence and malignancy. The authors report a case of a 64 year-old patient, with a single, well-delimited and asymptomatic nodular lesion that had emerged 5 months before.

Keywords: Neoplasms, Adnexal and skin appendage; Poroma; Sweat gland neoplasms