Ancient schwannoma in the parotid gland: A case report and review of the literature.

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE Imaging Science in Dentistry Pub Date : 2023-09-01 Epub Date: 2023-09-04 DOI:10.5624/isd.20230504
Young-Eun Kwon
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Abstract

Schwannomas are uncommon neoplasms of neurologic origin that are rare in the salivary glands. A schwannoma that persists for a long time is referred to as an ancient schwannoma if it is accompanied by degenerative changes on histology. The case described herein involved a 37-year-old man with an ancient schwannoma that had persisted for 20 years in his right parotid gland. Clinically, the lesion presented with swelling and pain. Computed tomography revealed a well-defined, multilocular enhanced lesion. T2-weighted magnetic resonance images displayed multilocular hyperintensity, while T1-weighted images showed a high signal at the lobulated margin and a homogeneous low signal internally. The preoperative diagnosis, based on the lesion's location and imaging diagnosis, was Warthin's tumor. However, a biopsy conducted after surgical excision identified the lesion as a schwannoma with cystic degeneration. This report also presents a summary of the characteristics of rare cases of schwannoma in the major salivary gland based on this case and a literature review.

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腮腺古代神经鞘瘤:一例报告并文献复习。
神经鞘瘤是一种罕见的神经系统肿瘤,在唾液腺中很少见。如果伴有组织学退行性变化,则长期存在的神经鞘瘤被称为古神经鞘瘤。本文描述的病例涉及一名37岁的男子,他患有一种在右腮腺持续了20年的古老神经鞘瘤。临床上,病变表现为肿胀和疼痛。计算机断层扫描显示一个明确的多房增强病变。T2加权磁共振图像显示多房高信号,而T1加权图像显示小叶边缘的高信号和内部的均匀低信号。根据病变的位置和影像学诊断,术前诊断为Warthin肿瘤。然而,手术切除后进行的活检发现,该病变为伴有囊性变性的神经鞘瘤。本报告还总结了罕见的大唾液腺神经鞘瘤病例的特征,并对其进行了文献综述。
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来源期刊
Imaging Science in Dentistry
Imaging Science in Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
2.90
自引率
11.10%
发文量
42
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