title: Leiomyosarcoma of penile prepuce with ultrastructural study.
abstract: A case of a leiomyosarcoma developing in a penile prepuce of a young patient is presented with ultrastructural studies. The firm, well-circumscribed nodule was present for several years. Histologically and ultrastructurally the excised nodule showed features of a leiomyosarcoma. The incidence and morphology of this rare tumor is discussed.
mesh_terms: D006801:Humans; D007890:Leiomyosarcoma / Q000648:ultrastructure*; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D010412:Penile Neoplasms / Q000648:ultrastructure*; D010413:Penis / Q000473:pathology*