Abstract：
A physical examination of a 9-month-old female infant presenting with vomiting and diarrhea revealed tenderness in the right upper abdomen and heightened abdominal muscle tone. Abdominal ultrasonography identified an irregular hypoechoic area within the right lobe of the liver. While a subsequent enhanced CT examination disclosed a well-defined lesion exhibiting internal focal calcification and delayed heterogeneous enhancement. Subsequently, she underwent surgical resection, and postoperative pathology revealed areas of epithelioid hemangioendothelioma and cavernous hemangioma. Immunohistochemistry demonstrated positive expression of CD34, CD31, FLI-1, and F-VIII. The pathologic diagnosis was confirmed as composite hemangioendothelioma (CHE).
摘要：
一名9个月大的女婴出现呕吐和腹泻的体格检查显示右上腹部有压痛，腹部肌肉张力升高。腹部超声检查发现肝脏右叶内不规则的低回声区域。尽管随后的增强CT检查发现了明确的病变，表现出内部局灶性钙化和延迟的异质增强。随后，她接受了手术切除,术后病理显示上皮样血管内皮瘤和海绵状血管瘤。免疫组织化学显示CD34，CD31，FLI-1和F-VIII的阳性表达。病理诊断为复合血管内皮瘤（CHE）。
