title: Polypoid dermal hemangiopericytoma: a case report.
abstract: A polypoid dermal lesion with histologic, immunohistochemical, and ultrastructural features of hemangiopericytoma is described. Such tumors, arising in the dermis, are exceptionally rare, and whereas the tumor bears some resemblance to meningioma-like tumors of the skin and the well-recognized animal counterpart, canine hemangiopericytoma, it is histologically distinct.
authors.affiliation: Histopathology Department, St. James Hospital and Trinity College, Dublin, Ireland.
authors.forename: A M
authors.initials: AM
authors.lastname: Pollock
authors.forename: E C
authors.initials: EC
authors.lastname: Sweeney
mesh_terms: D000328:Adult; D005260:Female; D006393:Hemangiopericytoma / Q000737:chemistry / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D007150:Immunohistochemistry; D011127:Polyps / Q000473:pathology*; D012867:Skin / Q000737:chemistry / Q000473:pathology / Q000648:ultrastructure; D012878:Skin Neoplasms / Q000737:chemistry / Q000473:pathology* / Q000648:ultrastructure; D014746:Vimentin / Q000032:analysis
chemical_list: D014746:Vimentin