Acquired melanocytic lesions resembling malignant melanoma have been described in all major categories of Epidermolysis bullosa and referred to as "Epidermolysis bullosa nevi''. They easily induce to diagnostic error, although no malignant transformation has been reported. We report the development of a large acquired melanocytic nevus at a site of recurrent blisters in a 5-year-old child with ...

In this paper, we propose a novel approach to discriminate malignant melanomas and benign atypical nevi, since both types of melanocytic skin lesions have very similar characteristics. Recent studies involving the non-invasive diagnosis of melanoma indicate that the concentrations of the two main classes of melanin present in the human skin, eumelanin and pheomelanin, can potentially be used in...

In this paper the development of a new internet information system for analyzing and classifying melanocytic data, is briefly described. This system also has some teaching functions, improves the analyses of datasets based on calculating the values of the TDS (Total Dermatoscopy Score) (Braun-Falco, Stolz, Bilek, Merkle, & Landthaler, 1990; Hippe, Bajcar, Błajdo, Grzymała-Busse, Grzymała-Busse,...

BACKGROUND Placental metastases from cutaneous malignant melanoma from both the mother and the fetus have been reported. The finding of benign-appearing melanocytes in the placenta in association with congenital melanocytic nevi (CMN) is more exceptional, with only 6 reports in the literature. Clinically, the finding of melanocytes in the placenta in this setting can be alarming and might erron...

BACKGROUND The progression from a benign pigmented lesion on the skin to cutaneous melanoma is better understood, and it could be presumed that a similar progression occurs with mucosal lesions. However, to our knowledge, there has never been documentation of melanosis transforming into melanoma over time. OBJECTIVE To describe a transformation of a mucosal melanosis into melanoma. METHODS ...

OBJECTIVE The aim of this study was to analyze the immunohistochemical expression of Skp2 protein in 38 oral nevi and 11 primary oral melanomas. STUDY DESIGN Expression of this ubiquitin protein was evaluated by immunohistochemistry in 49 oral melanocytic lesions, including 38 intramucosal nevi and 11 primary oral melanomas. The labeling index (LI) was assessed considering the percentage of c...

Neurocutaneous melanosis (NCM) is a rare congenital syndrome characterized by the presence of large or multiple congenital melanocytic nevi with either benign or malignant pigmented cell tumors of the leptomeninges. We report a case of NCM in a patient with previously robust health. No neurological deficit was noted in the patient. At the age of 21 years old, blurred vision initially appeared. ...