Epithelioid Hemangioendothelioma with WWTR1-CAMTA1 Fusion in the Parotid Gland Presenting as Bell’s Palsy

Epithelioid hemangioendothelioma is a rare tumor of endothelial differentiation most commonly arising in soft tissue, liver, and lung, following a variable clinical course. Most cases are characterized by a t(1;3)(p36;q23-25) resulting in WWTR1-CAMTA1 fusion. Only five epithelioid hemangioendothelio...

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Main Authors: Landon J. Kunzelman, Shweta Agarwal, Nathan Boyd, Cory J. Broehm
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Case Reports in Pathology
Online Access:http://dx.doi.org/10.1155/2022/5687190
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author Landon J. Kunzelman
Shweta Agarwal
Nathan Boyd
Cory J. Broehm
author_facet Landon J. Kunzelman
Shweta Agarwal
Nathan Boyd
Cory J. Broehm
author_sort Landon J. Kunzelman
collection DOAJ
description Epithelioid hemangioendothelioma is a rare tumor of endothelial differentiation most commonly arising in soft tissue, liver, and lung, following a variable clinical course. Most cases are characterized by a t(1;3)(p36;q23-25) resulting in WWTR1-CAMTA1 fusion. Only five epithelioid hemangioendothelioma have been previously reported arising in the salivary glands. None have presented as Bell’s palsy. In the current case, a 37-year-old female presented with a longstanding complaint of pain and fullness in the right preauricular region and progressive episodes of Bell’s palsy and facial nerve weakness. Surgical resection showed a tumor comprised of atypical cells with occasional intracytoplasmic vacuoles in a fibromyxoid stroma. Immunohistochemical stains demonstrated the neoplastic cells expressed ERG, CD31, and CD34, confirming vascular differentiation. Fluorescence in situ hybridization revealed a t(1;3)(p36;q25), confirming a diagnosis of epithelioid hemangioendothelioma. At 12-month follow-up, the patient has no evidence of disease.
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spelling doaj-art-6921d4d3b1c44a89bca643c3c1fa144c2025-02-03T01:32:35ZengWileyCase Reports in Pathology2090-679X2022-01-01202210.1155/2022/5687190Epithelioid Hemangioendothelioma with WWTR1-CAMTA1 Fusion in the Parotid Gland Presenting as Bell’s PalsyLandon J. Kunzelman0Shweta Agarwal1Nathan Boyd2Cory J. Broehm3University of New MexicoUniversity of New MexicoUniversity of New MexicoUniversity of New MexicoEpithelioid hemangioendothelioma is a rare tumor of endothelial differentiation most commonly arising in soft tissue, liver, and lung, following a variable clinical course. Most cases are characterized by a t(1;3)(p36;q23-25) resulting in WWTR1-CAMTA1 fusion. Only five epithelioid hemangioendothelioma have been previously reported arising in the salivary glands. None have presented as Bell’s palsy. In the current case, a 37-year-old female presented with a longstanding complaint of pain and fullness in the right preauricular region and progressive episodes of Bell’s palsy and facial nerve weakness. Surgical resection showed a tumor comprised of atypical cells with occasional intracytoplasmic vacuoles in a fibromyxoid stroma. Immunohistochemical stains demonstrated the neoplastic cells expressed ERG, CD31, and CD34, confirming vascular differentiation. Fluorescence in situ hybridization revealed a t(1;3)(p36;q25), confirming a diagnosis of epithelioid hemangioendothelioma. At 12-month follow-up, the patient has no evidence of disease.http://dx.doi.org/10.1155/2022/5687190
spellingShingle Landon J. Kunzelman
Shweta Agarwal
Nathan Boyd
Cory J. Broehm
Epithelioid Hemangioendothelioma with WWTR1-CAMTA1 Fusion in the Parotid Gland Presenting as Bell’s Palsy
Case Reports in Pathology
title Epithelioid Hemangioendothelioma with WWTR1-CAMTA1 Fusion in the Parotid Gland Presenting as Bell’s Palsy
title_full Epithelioid Hemangioendothelioma with WWTR1-CAMTA1 Fusion in the Parotid Gland Presenting as Bell’s Palsy
title_fullStr Epithelioid Hemangioendothelioma with WWTR1-CAMTA1 Fusion in the Parotid Gland Presenting as Bell’s Palsy
title_full_unstemmed Epithelioid Hemangioendothelioma with WWTR1-CAMTA1 Fusion in the Parotid Gland Presenting as Bell’s Palsy
title_short Epithelioid Hemangioendothelioma with WWTR1-CAMTA1 Fusion in the Parotid Gland Presenting as Bell’s Palsy
title_sort epithelioid hemangioendothelioma with wwtr1 camta1 fusion in the parotid gland presenting as bell s palsy
url http://dx.doi.org/10.1155/2022/5687190
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