Malignant oncocytoma of the lacrimal sac: ultrastructure and immunocytochemistry.
Malignant oncocytoma of the lacrimal sac is a rare tumor. A third example is presented here. In addition to oncocytes, tumor acini also harbored a few mucin cells and myoepithelial cells. The presence of immunoreactive lactoferrin and secretory piece suggested a resemblance to parotid acinic cell carcinomas. The difference was marked by a compact acinar structure and myoepithelial cell differentiation in the oncocytoma.
Department of Pathology, University of Wisconsin Hospital and Clinics, Madison 53792, USA.
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S
Tomic
T F
TF
Warner
J H
JH
Brandenburg
D018249:Adenoma, Oxyphilic / Q000175:diagnosis / Q000601:surgery / Q000648:ultrastructure*; D000368:Aged; D005260:Female; D006258:Head and Neck Neoplasms / Q000175:diagnosis / Q000601:surgery / Q000648:ultrastructure*; D006801:Humans; D007231:Infant, Newborn; D007765:Lacrimal Apparatus / Q000601:surgery / Q000648:ultrastructure*; D009361:Neoplasm Invasiveness; D014057:Tomography, X-Ray Computed