Adenoma of type 2 pneumocytes with oncocytic features
Fine, G.; Chang, C.H.
Archives of Pathology and Laboratory Medicine 115(8): 797-801
1991
ISSN/ISBN: 0003-9985 PMID: 1863190 Document Number: 375260
An adenoma of type 2 pneumocytes in the periphery of the left lung was an incidental finding at the autopsy of a 28-year-old woman. Light microscopy revealed a predominantly papillary growth with oncocytic features. Ultrastructurally, multilaminated bodies and many mitochondria were found in the tumor cells and tubular myelin in the extracellular spaces. Immunohistochemistry revealed surfactant apoprotein in tumor cells and extracellularly.