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Follicular baso‐squamous melanocytic tumour of the skin
Author(s) -
Riccioni L,
Cenacchi G,
Ragazzini T,
Collina G
Publication year - 2002
Publication title -
histopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.626
H-Index - 124
eISSN - 1365-2559
pISSN - 0309-0167
DOI - 10.1046/j.1365-2559.2002.01508.x
Subject(s) - pathology , follicular phase , keratin , immunohistochemistry , melanoma , hair follicle , biology , basal cell , melanin , medicine , cancer research , microbiology and biotechnology , genetics , endocrinology
Aims: We describe a previously unrecognized pigmented tumour of the skin and suggest a possible relationship with the follicular bulb. Methods and results: A pigmented epithelial neoplasm clinically simulating a malignant melanoma of the skin was present in a 92‐year‐old woman, on her left leg. It was composed of three cell types: squamous cells with trichilemmal keratinization, basaloid cells and dendritic melanocytes. The presence of three cell types was confirmed by immunohistochemistry and electron microscopy. Conclusions: The tumour showed differentiation towards the hair follicular bulb and the descriptive term of follicular baso‐squamous melanocytic tumour is suggested.