Mitnick J S, Pinto R S, Lin J P, Rose H, Lieberman A
Radiology. 1984 Feb;150(2):385-9. doi: 10.1148/radiology.150.2.6691090.
Thrombosed arteriovenous malformations (AVMs) in children are rare lesions that may present with headaches or a seizure disorder. Thirteen patients (4 months to 21 years of age) with this lesion were examined with computed tomography (CT). In 11 patients surgical confirmation was obtained, and the other two patients were examined with follow-up CT scans. Angiography either showed an avascular mass (7/13) or was negative (6/13). CT showed a lobulated lesion (8/13), peripheral location (11/13), and minimal surrounding edema (8/13). All of the lesions were hyperdense prior to the administration of contrast material and all enhanced either slightly or not at all following contrast material administration. It is concluded that these characteristic CT features aid in making the diagnosis of thrombosed AVM. The major differential diagnosis is small intracerebral neoplasm.
儿童血栓形成的动静脉畸形（AVM）是一种罕见的病变，可能表现为头痛或癫痫发作。对13例患有这种病变的患者（年龄从4个月到21岁）进行了计算机断层扫描（CT）检查。11例患者获得了手术证实，另外2例患者进行了CT随访扫描。血管造影显示无血管团块（7/13）或为阴性（6/13）。CT显示为分叶状病变（8/13）、位于周边（11/13）且周围水肿轻微（8/13）。所有病变在注射造影剂前均为高密度，注射造影剂后均轻度强化或无强化。结论是这些特征性的CT表现有助于血栓形成的AVM的诊断。主要鉴别诊断是小的脑内肿瘤。
