Thoraco-lumbar nondysraphic intramedullary spinal cord lipoma with an unusual aspect on MRI

Abstract

Relato de caso J Bras Neurocirurg 23 (3): 251-255, 2012 Araújo LP, Dezena RA, Silva MN, Etchebehere RM, Dornelas AG -Thoraco-lumbar nondysraphic intramedullary spinal cord lipoma with an unusual aspect on MRI: case report and review RESUMO Lipomas intramedulares são tumores raquidianos muito raros, sendo a maioria associado a disrafismos espinhais. Neste artigo relatamos o caso de um paciente oligossintomático, apresentando um lipoma intramedular tóraco-lombar não associado a disrafismo espinhal, com um sinal bifásico pouco usual na RM ponderada em T1, e submetido a biópsia microcirúrgica. Aspectos de origem, evolução, diagnóstico e tratamento são discutidos. Palavras Chave: lipoma intramedular; RM. ABSTRACTIntramedullary spinal cord lipomas are very rare spinal tumors, most of them related to spinal dysraphism. We report the case of an oligosymptomatic patient, presenting with a thoraco-lumbar nondysraphic intramedullary spinal cord lipoma, with an unusual biphasic sign on T1-weighted MRI, and submitted to microsurgical biopsy. Features of origin, evolution, diagnosis and treatment are discussed.

Intramedullary spinal cord lipoma mimicking a late subacute hematoma

“…[ 3 ] The incidence of intradural intramedullary nondysraphic spinal cord lipomas is very low, amounting to <1% of all spinal cord tumors. [ 4 5 6 7 8 ] Intradural intramedullary spinal cord lipomas are more often associated with dysraphism. [ 2 9 10 11 12 ] The most common location of intradural lipomas is the dorsal part of the cervical or thoracic spine.…”