Encapsulated uninodular dermatofibrosarcoma protuberans of the dermis: a case report.
We report an unusual case of dermatofibrosarcoma protuberans presenting as a small encapsulated uninodular mass, located exclusively in the dermis. Differential diagnostic problems with nodular spindle-shaped cell lesions of the dermis are discussed. A distinct histologic finding was the presence of a myofibroblast-rich fibrous pseudocapsule surrounding the tumor. The possible origin and role of this pseudocapsule are proposed.
Magro
G
G
Institute of Pathological Anatomy, University of Catania, Italy.
Grasso
S
S
D000199:Actins / Q000032:analysis; D018952:Antigens, CD34 / Q000032:analysis; D018223:Dermatofibrosarcoma / Q000737:chemistry / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008875:Middle Aged; D012878:Skin Neoplasms / Q000737:chemistry / Q000473:pathology*
D000199:Actins; D018952:Antigens, CD34