The presence of certain cutaneous findings may be clues to underlying cerebral dysraphism.
Skin findings on the scalp:
(1) scalp hair collar: scalp nodule (typically midline) surrounded by a ring of long, dark, coarse hairs
(2) hair tufts
(3) capillary vascular stain
The patient may have:
(1) aplasia cutis congenita
(2) meningothelial hamartoma
(3) benign fibrous tumor
Cerebral dysraphism may include:
(1) meningocele or encephalocele
(2) agenesis of the corpus callosum
