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目的探讨肝脏血管周上皮样细胞瘤的临床病理特征。方法报告1例肝脏血管周上皮样细胞瘤,结合文献分析其临床表现、病理特征和免疫组化表达。结果该例肝脏血管周上皮样细胞瘤无临床症状,辅助检查无特征性阳性,术前难以确诊。组织学上由单一的上皮样细胞构成,无厚壁血管及脂肪成分,瘤细胞特征性表达HMB-45。结论肝脏血管周上皮样细胞瘤十分罕见,确诊依靠病理检查,手术完整切除是目前主要的治疗方法。该肿瘤生物学行为不确定,术后需要密切随访。
Objective To investigate the clinicopathological features of hepatic pericytes. Methods One case of perivascular epithelial cell tumor of the liver was reported. The clinical manifestations, pathological features and immunohistochemical expression were analyzed in combination with the literature. The results of this case of percutaneous pericytes of the liver no clinical symptoms, no specific positive auxiliary examination, preoperative diagnosis difficult. Histologically composed of a single epithelial-like cells, no thick blood vessels and fat components, tumor cells characteristic expression of HMB-45. Conclusion Peripheral blood cell tumor of the liver is very rare. The diagnosis depends on the pathological examination. The complete surgical resection is the main treatment. The tumor biological behavior is uncertain and requires close follow-up.