CASE-OF-THE-MONTH - JUNE 1998 - 2-YEAR OLD BOY WITH LUMBOSACRAL MASS - LIPOMYELOMENINGOCELE WITH NEPHROGENIC RESTS

We report the case of a boy aged 2 years with spina bifida and a lipom yelomeningocele which contained ectopic immature renal tissue. He pres ented with a swelling over the lumbosacral region, incontinence, and b ilateral leg weakness, Histopathologic examination revealed adipose ti ssue in which a focus of fibrous tissue contained neuroglial elements, striated muscle fibres and clusters of glomeruloid structures surroun ded by immature tubules. The differential diagnosis of teratoma and li pomyelomeningocele with nephrogenic rests is discussed with reference to possible pathogenesis.