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Current Medical Imaging

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ISSN (Print): 1573-4056
ISSN (Online): 1875-6603

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Case Report

Multiple Parotid Sebaceous Lymphadenoma: A Case Report and Review of the Literature

Author(s): Yanhui Yang, Mengjie Tang, Zhiyuan Wang, Yi Fu and Xiaoping Yu*

Volume 20, 2024

Published on: 02 October, 2023

Article ID: e250823220364 Pages: 5

DOI: 10.2174/1573405620666230825113417

open_access

Abstract

Introduction/Background: Sebaceous lymphadenoma is a rare parotid gland neoplasm. Up to now, there have been several studies that have discussed the imaging manifestations of salivary sebaceous lymphadenoma. In this paper, we have reported a case of multiple parotid sebaceous lymphadenoma demonstrated by ultrasound, CT scan, and MRI examinations, including diffusion-weighted imaging. To the best of our knowledge, this report is the first one on DWI findings of sebaceous lymphadenomas, and also the first report on multiple lesions in unilateral parotid gland.

Case Presentation: A 41-year-old woman presented with a nodule in the left parotid region. The lesion has grown slowly for 2 months and was not associated with any discomfort. Ultrasound, CT scan, and MRI examinations, including diffusion-weighted imaging, showed multiple nodules in the left parotid gland of a 41-year-old woman. These nodules were heterogeneous on CT scan and MRI examinations, and intratumorally multifocal fat and cystic areas were detected. On ultrasound examination images, these lesions were heterogeneous hypoechoic echotexture with multifocal irregular hyperechogenic areas, without significant blood flow. The patient underwent a left parotidectomy. Histopathologic sections showed nests of sebocytes distributed in lymphoid follicles and lymphocyte background, with obvious cystic changes. The patient recovered after receiving left parotidectomy. The microscopy diagnosis was parotid sebaceous lymphadenoma.

Conclusion: This case highlights the main imaging feature of parotid sebaceous lymphadenomas, namely an intraparotid heterogeneous nodule containing multifocal fat and cystic areas, and its possible origination from an intraparotid lymph node. This case also indicates that this rare lesion may involve multiple occurrences.

Keywords: Major salivary gland, Neoplasm, Sebaceous, Ultrasound, X-ray computed tomography, MRI.

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