Spinal neurinomas and meningiomas in children.

The literature on spinal neurinomas (N) and meningiomas (M) in children is reviewed, and five personal cases of N are added (one in the context of Recklinghausen's disease). The cases of N totalled 151, and of M 69, accounting respectively for 10.9% and 4.3% of childhood spinal tumours and 2.6% and 1.3% of spinal N and M of all ages. Sixty-one cases of N (16 in the context of Recklinghausen's disease) and 26 cases of M (5 in the context of Recklinghausen's disease) are analyzed in detail. N occurs chiefly between ages 9 and 15 years, the sex ratio is 3 : 2, all levels of the spinal canal are equally affected, and extradural N or conditions with an extradural component (48%) are more frequent than in adults (26.9%). M occurs chiefly between 12 and 15 years, the sex ratio is 3 : 2, the prevalence of the thoracic segment (47.8%) is less marked than in adults (81%), and the frequency of the extradural site (10.6%) is close to the sum of the extradural and dumb-bell lesions in adults (11.1%). In children vertebral signs, i.e., spinal rigidity and tenderness, and spasm of paravertebral muscles, are more intense, earlier, and more frequent than in adults, and the clinical history is shorter. The chances of recovery from neurological deficits are greater, as are those of malignant degeneration.