title: Localized (solitary) fibrous tumor of the pleura.
abstract: Clinical, light microscopic, ultrastructural, and immunocytochemical features of localized fibrous tumor of the pleura are reviewed. The differential diagnosis of the benign tumors can be uncomplicated, but atypical variants and malignant forms require the exclusion of other tumors included in the broad array of spindle cell neoplasms that can arise in or extend to a serosal surface. Electron microscopy is useful, but immunostaining procedures offer more extensive and reliable help in reaching the correct diagnosis. Tumors histologically similar to localized fibrous tumor of the pleura have been described in a number of extraserosal locations. Some localized fibrous tumors may be true fibromas, whereas the typical pleural tumor appears to arise from the subserosal mesenchymal cell and is composed of CD34-positive cells which are more primitive in their morphology than mature fibroblasts.
authors.affiliation: The University of Texas M.D. Anderson Cancer Center, Houston 77030, USA.
authors.forename: N G
authors.initials: NG
authors.lastname: Ordóñez
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018952:Antigens, CD34 / Q000032:analysis; D002648:Child; D003937:Diagnosis, Differential; D005350:Fibroma / Q000473:pathology / Q000648:ultrastructure; D006801:Humans; D007150:Immunohistochemistry; D008854:Microscopy, Electron; D008875:Middle Aged; D018218:Neoplasms, Fibrous Tissue / Q000473:pathology* / Q000648:ultrastructure; D010997:Pleural Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D011379:Prognosis
chemical_list: D018952:Antigens, CD34