title: Intrapulmonary thymoma.
abstract: A 50-year-old man presented with a lung mass in the left upper lobe, which was shown by electron microscopy to be a thymoma. There was no evidence of a mediastinal mass. The lymphocytes of the tumor reacted with monoclonal antibody T101, a pan T-cell marker, and with OKT8. B1 and B2 surface antigens characteristic of B lymphocytes were not detected. Tumors of thymic epithelial cells completely covered by pleura without mediastinal involvement are rare.
authors: Department of Pathology, College of Medicine, Howard University, Washington, DC 20059.
authors: W R
authors: WR
authors: Green
authors: R
authors: R
authors: Pressoir
authors: R V
authors: RV
authors: Gumbs
authors: O
authors: O
authors: Warner
authors: T
authors: T
authors: Naab
authors: M
authors: M
authors: Qayumi
mesh_terms: D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology*; D008214:Lymphocytes / Q000276:immunology; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D010994:Pleura / Q000000981:diagnostic imaging / Q000473:pathology; D013945:Thymoma / Q000000981:diagnostic imaging / Q000473:pathology*; D013953:Thymus Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed