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Papillary cystic oncocytoma and Warthin's tumor of the parotid gland

Published online by Cambridge University Press:  29 June 2007

P. A. Wackym*
Affiliation:
Los Angeles, California and Nashville, Tennesse, U.S.A.
G. F. Gray Jr.
Affiliation:
Los Angeles, California and Nashville, Tennesse, U.S.A.
L. Rosenfeld
Affiliation:
Los Angeles, California and Nashville, Tennesse, U.S.A.
I. Friedmann
Affiliation:
Los Angeles, California and Nashville, Tennesse, U.S.A.
*
Reprint requests and correspondence to: Phillip Ashley Wackym, M.D., A7–130 CHS, UCLA Hospital, Los Angeles, CA 90024, U.S.A.

Abstract

A 69-year-old white female had a left superficial parotidectomy for a papillary cystic oncocytoma. The histologic appearance was identical to Warthin's tumor except that it lacked a lymphoid component. This case suggests that the general morphology of a Warthin's tumor does not depend on the presence of lymphoid tissue or association with an intra-parotid lymph node. We reviewed 50 patients with Warthin's tumor to investigate the histogenesis of the lesion. We found that most Warthin's tumors (86%) appeared to be within lymph nodes, as indicated by the presence of a lymph node capsule or sinuses. The anatomy of intra-parotid lymph nodes in glands containing Warthin's tumors has been compared with that found in 11 parotid glands containing mucoepidermoid carcinomas. So-called heterotopic ductal inclusions may actually represent the normal intimate relationship of parotid gland to intra-parotid lymph nodes.

Information

Type
Research Article
Copyright
Copyright © JLO (1984) Limited 1986

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