A Rare Diagnosis of Parotid Gland Follicular Lymphoma Arising in Warthin Tumor: Case Report and Literature Review

<i>Introduction</i>: A Warthin tumor is a benign salivary gland neoplasm, mostly found in the parotid gland. The number of reported Warthin tumors has increased over the years due to better diagnostic modalities and health system modernization. Warthin tumor rarely transforms into a mali...

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Main Authors: Ido Vaknin, Irit Allon, Shirley Zafrir-Haver, Alex Abramson
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Medicina
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Online Access:https://www.mdpi.com/1648-9144/60/12/2086
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author Ido Vaknin
Irit Allon
Shirley Zafrir-Haver
Alex Abramson
author_facet Ido Vaknin
Irit Allon
Shirley Zafrir-Haver
Alex Abramson
author_sort Ido Vaknin
collection DOAJ
description <i>Introduction</i>: A Warthin tumor is a benign salivary gland neoplasm, mostly found in the parotid gland. The number of reported Warthin tumors has increased over the years due to better diagnostic modalities and health system modernization. Warthin tumor rarely transforms into a malignant tumor; in this work, we present all cases reported in the English literature of different types of lymphomas within Warthin tumors. In this case, we present a low-grade follicular lymphoma arising within a Warthin tumor. <i>Clinical report</i>: A 64-year-old man presented to an oral and maxillofacial surgery clinic with a growing right facial mass. The medical history was significant for stable angina pectoris, hypertension, hypercholesterolemia, obesity, and a 20-pack-year smoking history. Fine needle aspiration suggested a diagnosis of Warthin tumor. A contrast CT scan of the parotid gland demonstrated a 2.9 × 2.7 × 4.1 cm diameter mass. The patient underwent right superficial parotidectomy. Histological examination of the mass revealed a low-grade follicular lymphoma arising in a pre-existing Warthin tumor. The postoperative PET CT showed no distant disease, and bone marrow biopsy during hematologic evaluation confirmed Stage 1 low-grade follicular lymphoma. The patient received 24 Gy of VMAT radiation therapy to the right parotid gland and continued hematologic follow-up. <i>Conclusions</i>: Based on a literature review, this is one of the few well-documented cases reported of low-grade follicular lymphoma within a Warthin tumor. This case highlights the importance of the thorough evaluation and diagnosis of parotid masses. Furthermore, this case reopens the debate on the “wait and see” approach regarding Warthin tumors. Fine needle aspiration-based diagnosis should not be considered final, as some malignant characteristics can be missed if declining surgery.
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spelling doaj-art-727a540ac8924f0fbfb15e6a86aa53502024-12-27T14:39:06ZengMDPI AGMedicina1010-660X1648-91442024-12-016012208610.3390/medicina60122086A Rare Diagnosis of Parotid Gland Follicular Lymphoma Arising in Warthin Tumor: Case Report and Literature ReviewIdo Vaknin0Irit Allon1Shirley Zafrir-Haver2Alex Abramson3Oral and Maxillofacial Surgery Department, Barzilai University Medical Center, Ben Gurion University of the Negev, Beer Sheva 8443944, IsraelInstitute of Pathology, Barzilai University Medical Center, Ashkelon 7830604, IsraelDepartment of Hematology, Barzilai University Medical Center, Ben Gurion University of the Negev, Beer Sheva 8443944, IsraelOral and Maxillofacial Surgery Department, Barzilai University Medical Center, Ben Gurion University of the Negev, Beer Sheva 8443944, Israel<i>Introduction</i>: A Warthin tumor is a benign salivary gland neoplasm, mostly found in the parotid gland. The number of reported Warthin tumors has increased over the years due to better diagnostic modalities and health system modernization. Warthin tumor rarely transforms into a malignant tumor; in this work, we present all cases reported in the English literature of different types of lymphomas within Warthin tumors. In this case, we present a low-grade follicular lymphoma arising within a Warthin tumor. <i>Clinical report</i>: A 64-year-old man presented to an oral and maxillofacial surgery clinic with a growing right facial mass. The medical history was significant for stable angina pectoris, hypertension, hypercholesterolemia, obesity, and a 20-pack-year smoking history. Fine needle aspiration suggested a diagnosis of Warthin tumor. A contrast CT scan of the parotid gland demonstrated a 2.9 × 2.7 × 4.1 cm diameter mass. The patient underwent right superficial parotidectomy. Histological examination of the mass revealed a low-grade follicular lymphoma arising in a pre-existing Warthin tumor. The postoperative PET CT showed no distant disease, and bone marrow biopsy during hematologic evaluation confirmed Stage 1 low-grade follicular lymphoma. The patient received 24 Gy of VMAT radiation therapy to the right parotid gland and continued hematologic follow-up. <i>Conclusions</i>: Based on a literature review, this is one of the few well-documented cases reported of low-grade follicular lymphoma within a Warthin tumor. This case highlights the importance of the thorough evaluation and diagnosis of parotid masses. Furthermore, this case reopens the debate on the “wait and see” approach regarding Warthin tumors. Fine needle aspiration-based diagnosis should not be considered final, as some malignant characteristics can be missed if declining surgery.https://www.mdpi.com/1648-9144/60/12/2086lymphomaWarthin tumorparotid glandparotidectomy
spellingShingle Ido Vaknin
Irit Allon
Shirley Zafrir-Haver
Alex Abramson
A Rare Diagnosis of Parotid Gland Follicular Lymphoma Arising in Warthin Tumor: Case Report and Literature Review
Medicina
lymphoma
Warthin tumor
parotid gland
parotidectomy
title A Rare Diagnosis of Parotid Gland Follicular Lymphoma Arising in Warthin Tumor: Case Report and Literature Review
title_full A Rare Diagnosis of Parotid Gland Follicular Lymphoma Arising in Warthin Tumor: Case Report and Literature Review
title_fullStr A Rare Diagnosis of Parotid Gland Follicular Lymphoma Arising in Warthin Tumor: Case Report and Literature Review
title_full_unstemmed A Rare Diagnosis of Parotid Gland Follicular Lymphoma Arising in Warthin Tumor: Case Report and Literature Review
title_short A Rare Diagnosis of Parotid Gland Follicular Lymphoma Arising in Warthin Tumor: Case Report and Literature Review
title_sort rare diagnosis of parotid gland follicular lymphoma arising in warthin tumor case report and literature review
topic lymphoma
Warthin tumor
parotid gland
parotidectomy
url https://www.mdpi.com/1648-9144/60/12/2086
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