title: Report of an intrapulmonary solitary fibrous tumor: fine-needle aspiration cytologic findings, clinicopathological, and immunohistochemical features.
abstract: The authors describe a rare case of intrapulmonary solitary fibrous tumor (SFT). Morphologically, the tumor showed a disorganized or "patternless" arrangement of plump to spindle cells in a collagenous stroma. Tumor cells were immunoreactive for vimentin, but not for keratin, carcinoembryonic antigen, epithelial membrane antigen, factor-VIII related antigen, S-100 protein, desmin, and actin. These immunohistochemical findings suggested fibroblastic differentiation, in keeping with the putative submesothelial origin of the tumor. The problems concerning the fine-needle aspiration (FNA) preoperative diagnosis of SFT are briefly discussed.
authors.affiliation: Department of Human Pathology, University of Messina, Italy.
authors.forename: R A
authors.initials: RA
authors.lastname: Caruso
authors.forename: F
authors.initials: F
authors.lastname: LaSpada
authors.forename: M
authors.initials: M
authors.lastname: Gaeta
authors.forename: I
authors.initials: I
authors.lastname: Minutoli
authors.forename: C
authors.initials: C
authors.lastname: Inferrera
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D005350:Fibroma / Q000473:pathology*; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008297:Male; D010997:Pleural Neoplasms / Q000473:pathology