title: Spinal arachnoid cyst with unusual presentation. Case report.
abstract: A case is reported of spastic paraparesis due to a thoracic spinal arachnoid cyst. Symptoms occurred about 10 years after craniospinal injury. The histological examination revealed hemosiderin-containing macrophages trapped in the cyst wall. This finding and its possible pathogenetic implications are discussed, and the pertinent literature is reviewed.
mesh_terms: D000328:Adult; D001099:Arachnoid; D006259:Craniocerebral Trauma / Q000150:complications; D003560:Cysts / Q000175:diagnosis* / Q000209:etiology; D005260:Female; D006801:Humans; D009128:Muscle Spasticity / Q000175:diagnosis / Q000209:etiology; D010291:Paresis / Q000175:diagnosis / Q000209:etiology; D013119:Spinal Cord Injuries / Q000150:complications; D013122:Spinal Diseases / Q000175:diagnosis* / Q000209:etiology