Giant Terminal Myelocystocele: A Case Report.

Myelocystoceles, also known as syringoceles, syringomyeloceles, and lipomeningomyelocystoceles, represent 5% of all lumbosacral skin-covered masses. Terminal myelocystocele (TMC) is a rare variant of spinal dysraphism. At times, patients with TMCs can present with a huge lumbosacral mass (giant TMC). A 14-month-old female child presented with progressive increasing swelling in the lumbosacral region (35 cm × 35 cm × 30 cm) since birth with inability to move both lower limbs. Magnetic resonance imaging revealed a dilated terminal central canal herniating through a spina bifida defect (from L4 to S2) into a huge meningocele, suggestive of a giant TMC. The girl was operated on successfully and was doing well at 6 months follow-up, although neurologically unchanged. Giant TMC is a rare entity and only a few case reports are available in literature. Herein we present a case with TMC with the largest dimensions reported till date.