Bates Anthony Simon, Craig Paul, Knepil Greg J
University of Bristol, Bristol, UK.
BMJ Case Rep. 2014 Apr 9;2014:bcr2013201924. doi: 10.1136/bcr-2013-201924.
Myopericytoma (MPC) is a vascular neoplasm exhibiting differentiation towards perivascular cells. Variable cytoarchitechtural features are visible within MPC, and there is much overlap between MPC, myofibroma and glomus tumours. MPC have a local recurrence rate of 10-20% and malignancy has been described in a few published cases. Previously, superficial parotidectomy has been recommended for MPC but, in this case, the surgical approach was via extracapsular dissection (ECD). A 66-year-old Caucasian man presented with a palpable mass arising from the superficial lobe of the right parotid gland. Following removal by ECD, the histopathological diagnosis of MPC was made. This is the first published report describing ECD of MPC associated with the parotid gland. ECD is preferable to superficial parotidectomy for small superficial lesions such as MPC, with similar oncological outcomes and fewer functional and aesthetic complications.
肌周细胞瘤（MPC）是一种向血管周围细胞分化的血管性肿瘤。在MPC内可见多种细胞结构特征，并且MPC、肌纤维瘤和血管球瘤之间存在很多重叠。MPC的局部复发率为10%-20%，少数已发表病例中描述有恶性情况。以前，对于MPC推荐行腮腺浅叶切除术，但在本病例中，手术方式为囊外剥离术（ECD）。一名66岁的白人男性患者，其右侧腮腺浅叶出现一个可触及的肿块。经ECD切除后，做出了MPC的组织病理学诊断。这是首篇发表的描述与腮腺相关的MPC行ECD的报告。对于如MPC这样的小的浅表病变，ECD优于腮腺浅叶切除术，其肿瘤学结局相似，功能和美学方面的并发症更少。
