RT Journal Article SR Electronic T1 Meningeal dissemination of retinoblastoma: CT findings in eight patients. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 983 OP 986 VO 11 IS 5 A1 F J Meli A1 C A Boccaleri A1 J Manzitti A1 P Lylyk YR 1990 UL http://www.ajnr.org/content/11/5/983.abstract AB Thirty-seven patients with retinoblastoma were evaluated prospectively by clinical examination, lumbar puncture, and CT. Eight (22%) of the 37 were found to have meningeal dissemination. The tumor was bilateral in three patients. Two cases showed no CT signs of local recurrence. Headache, nausea/vomiting, and restlessness were the most common symptoms. CT scans in these patients showed diffuse meningeal contrast enhancement, nodular masses, ependymal-subependymal enhancement, and ventricular dilatation. Our series of eight patients with meningeal spread illustrates a considerable range of dissemination patterns referable to retinoblastoma. One case illustrated the CT finding of multiple epidural metastases.