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Head and Neck Pathology
Published in: Head and Neck Pathology 4/2019

01-12-2019 | Original Paper

Oncocytic Sialolipoma of Parotid Gland: Case Report and Literature Review

Authors: Komkrit Ruangritchankul, Steve Connor, Richard Oakley

Published in: Head and Neck Pathology | Issue 4/2019

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Abstract

Oncocytic sialolipoma is a very rare tumor of which only three cases have been reported. This entity is considered to be a variant of sialolipoma which harbours oncocytic nodules within a well-circumscribed lipomatous mass. We report a parotid mass in 73-year-old female that was difficult to diagnose in imaging and on biopsy. Ultrasonography and MRI demonstrated a mass with features thought to be consistent with lipoma. Twice needle core biopsies were performed. Both were indefinite for diagnosis. The first report favoured a lipoma and the second report suggested the lesion represented oncocytic hyperplasia or an oncocytoma. The microscopic examination of the excised surgical specimen demonstrated typical features of oncocytic sialolipoma, characterized by a predominately lipomatous component, sparse normal-appearing salivary gland tissue and multiple oncocytic nodules. This is the second case of oncocytic sialolipoma reported to occur in the parotid gland.
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Metadata
Title
Oncocytic Sialolipoma of Parotid Gland: Case Report and Literature Review
Authors
Komkrit Ruangritchankul
Steve Connor
Richard Oakley
Publication date
01-12-2019
Publisher
Springer US
Published in
Head and Neck Pathology / Issue 4/2019
Electronic ISSN: 1936-0568
DOI
https://doi.org/10.1007/s12105-018-0993-4

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