Hercot O, Giron J, Joffre P, Senac J P, Mary H, Baldet P
Service de Radiologie Centrale, Hôpital St-Charles, Montpelliers.
J Radiol. 1988 Jun-Jul;69(6-7):443-8.
Hemangiopericytoma is a rare vascular tumor of pericyte origin and of variable but always preoccupying potential since falling within the category of sarcomas. A thoracic localization is rare and primary pulmonary parenchyma lesions even more so, only 87 cases being reported in the literature. Radiological diagnostic criteria are of weak specificity, diagnosis being provided by thin section CT scan imaging with contrast. The differential diagnosis of these vascular tumors includes arteriovenous fistula, pulmonary varices, other vascular tumors or even organized bronchomucoceles. The value of CT scan puncture is obviously limited. The course is unpredictable since even histopathology findings fail to provide definitive data.
血管外皮细胞瘤是一种罕见的起源于周细胞的血管肿瘤，属于肉瘤范畴，其恶性潜能各异但一直令人担忧。胸部定位罕见，原发性肺实质病变更是如此，文献中仅报道了87例。放射学诊断标准特异性不强，需通过增强薄层CT扫描成像来确诊。这些血管肿瘤的鉴别诊断包括动静脉瘘、肺静脉曲张、其他血管肿瘤甚至机化性支气管黏液囊肿。CT穿刺活检的价值显然有限。其病程不可预测，因为即使组织病理学检查结果也无法提供确切数据。
