Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Jiefang Road 88#, Hangzhou 310009.
Department of Radiology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Shangcheng Avenue N1#, Yiwu 322000, China.
Medicine (Baltimore). 2021 Apr 9;100(14):e25471. doi: 10.1097/MD.0000000000025471.
Myopericytoma of the parotid gland is a rare condition of which preoperative definitive diagnosis is relatively challenging. The purpose of this case report is to highlight the radiologic features of myopericytoma of parotid gland.
A 62-year-old man presented with a history of a walnut-size mass in left parotid gland when yawned for half-month, and a 48-year-old woman complaint about a grape-size, painless mass behind the right ear for a month.
Radiological examinations suggested that both lesions were cyst-solid mixed lesions with relatively smoothed margins, with or without significant enhancement while the lesion without enhancement had a hemorrhage. Then a diagnosis of benign tumor arising from the parotid gland was made. Final diagnosis of myopericytoma was confirmed by histopathological and immunohistochemical examinations after surgical resection.
Both patients underwent excision of the tumor and the superficial parotidectomy with facial nerve preservation.
Both patients recovered without any intraoperative or postoperative complication and had no signs of recurrence during a 17-month and 5-year follow-up.
Parotid gland myopericytoma is an exceedingly rare tumor which diagnosis can be challenging, and this is the first published report specifying the magnetic resonance features of the disease.
腮腺肌纤维母细胞瘤是一种罕见疾病，术前明确诊断具有一定挑战性。本病例报告旨在强调腮腺肌纤维母细胞瘤的放射学特征。
一名 62 岁男性，半月前在打哈欠时发现左侧腮腺有核桃大小的肿块，另一名 48 岁女性则在右耳后发现葡萄大小、无痛性肿块 1 个月。
影像学检查提示这两个病变均为囊实性混合性病变，边界相对光滑，有或无明显强化，无强化的病变有出血。因此，诊断为腮腺良性肿瘤。术后行组织病理学和免疫组织化学检查，最终诊断为肌纤维母细胞瘤。
两名患者均行肿瘤切除术和保留面神经的腮腺浅叶切除术。
两名患者均无术中或术后并发症，随访 17 个月和 5 年均未见复发迹象。
腮腺肌纤维母细胞瘤是一种极其罕见的肿瘤，诊断具有一定挑战性，这是首次报道该疾病的磁共振特征。
