The author presents a case of a large intramedullary cisticercus surgically removed. This is probably the first such case operated on and reported in literature. The patient, a 56 year old white male, presenting a sensory and flacid motor paraparesis with spinal block at the level of T10-T11, evidenced by myelogram. The well limited tumor was surgically removed and the histopathological examination showed it to be an acephalic cisticercus, 4 cm in diameter, involved by chronic unspecific inflammatory tissue.