H. Tanabe et al., A case of giant extramammary Paget's disease of the genital area with squamous-cell carcinoma, DERMATOLOGY, 202(3), 2001, pp. 249-251
Extramammary Paget's disease is a primary carcinoma with apocrine different
iation that begins within the epidermis, Extramammary Paget's disease and s
quamous-cell carcinoma (SCC) have different neoplastic origins and are diff
erent both clinically and histologically. Until now the concurrence of extr
amammary Paget's disease and SCC in the same area has not been reported to
our knowledge. We report on a 76-year-old man with extramammary Paget's dis
ease affecting a large region of the genital area with SCC within the same
area. A skin biopsy specimen showed the coexistence of typical Paget's dise
ase and highly differentiated SCC invading the dermis. Immunohistochemical
staining of both cell types was completely different. Copyright (C) 2001 S.
Karger AG, Basel.