title: Transthoracic needle aspiration biopsy in inflammatory pseudotumors of the lung.
abstract: The cytologic findings on transthoracic needle aspiration biopsy in four patients with pulmonary inflammatory pseudotumor are described. These findings have not been previously illustrated in the literature. The main cytologic components of this lesion are histiocytes, lymphocytes, fibroblasts, pneumocytes, and plasma cells. Familiarity with these features is essential to avoid misdiagnosis and possible overtreatment.
authors.affiliation: Institute of Pathology, Case Western Reserve University, Cleveland, OH 44106.
authors.forename: C N
authors.initials: CN
authors.lastname: Machicao
authors.forename: K
authors.initials: K
authors.lastname: Sorensen
authors.forename: F W
authors.initials: FW
authors.lastname: Abdul-Karim
authors.forename: T M
authors.initials: TM
authors.lastname: Somrak
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology; D000328:Adult; D000368:Aged; D001707:Biopsy, Needle; D002295:Carcinoma, Transitional Cell / Q000473:pathology; D003581:Cytodiagnosis; D004407:Dysgerminoma / Q000473:pathology; D005347:Fibroblasts / Q000473:pathology; D005350:Fibroma / Q000473:pathology*; D006644:Histiocytes / Q000473:pathology; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology; D012189:Retrospective Studies; D003074:Solitary Pulmonary Nodule / Q000473:pathology*; D013909:Thorax; D001749:Urinary Bladder Neoplasms / Q000473:pathology