Chang K H, Cho S Y, Chi J G, Kim W S, Han M C, Kim C W, Myung H, Choi K S
Department of Radiology, Seoul National University Hospital, Korea.
Radiology. 1987 Nov;165(2):505-10. doi: 10.1148/radiology.165.2.3659374.
Cerebral sparganosis is an extremely rare parasitic zoonosis caused by a migrating plerocercoid tapeworm larva, genus Spirometra. Nineteen computed tomography (CT) scans of 12 patients with cerebral sparganosis were retrospectively analyzed and correlated with clinical and pathologic data. On CT scans, the following characteristics were noted: (a) unilateral involvement; (b) extensive or multifocal areas of low density along white matter bundles, with ipsilateral ventricular dilatation and localized cortical atrophy; (c) nodular or irregular enhancement with spotty calcification; and (d) change in location of enhancing nodules on sequential scans. These pathognomonic features reflect a chronic inflammatory process with both active granulomatous lesions and widespread degeneration of brain tissue, especially in the white matter. Degeneration is probably caused by migration of the long-surviving larva along the fiber tracts of white matter.
脑裂头蚴病是一种极为罕见的寄生虫人畜共患病，由裂头绦虫属的曼氏迭宫绦虫的移行蚴引起。对12例脑裂头蚴病患者的19份计算机断层扫描（CT）进行回顾性分析，并与临床和病理数据进行关联。在CT扫描上，观察到以下特征：（a）单侧受累；（b）沿白质束的广泛或多灶性低密度区，伴有同侧脑室扩张和局限性皮质萎缩；（c）结节状或不规则强化伴斑点状钙化；（d）连续扫描时强化结节位置的变化。这些特征性表现反映了一种慢性炎症过程，既有活跃的肉芽肿性病变，又有广泛的脑组织变性，尤其是白质。变性可能是由于长期存活的幼虫沿白质纤维束移行所致。
