• A 26-year-old man had mal perforans pedis as the principal manifestation of spina bifida occulta with an associated intradural lipoma. Two lumbosacral dimples and a tuft of hair overlying the spina bifida led to the diagnosis.
We include a review of the causes of mal perforans and a review of spina bifida occulta and associated abnormalities.
(Arch Dermatol 114:404-405, 1978)