1 Dysmorphology Unit, Department of Pediatrics, University of Washington School of Medicine, Seattle
A relationship has been deduced between aberrant scalp hair directional patterning and problems in early brain development and function. The unusual scalp hair patterns noted by Smith and Gong1,2 were frontal upsweep and aberrant parietal whorl(s). The purpose of this article is to report a third type of unusual scalp hair patterning, unruly hair over the top of the scalp, and its association with problems in brain development. This feature was initially observed by Freund in 1910,3 who noted its association with neuropathic dysfunction in infants.
METHODS
The definition of unruly hair is that which naturally and persistently tends to stand up over the top of the head from the area of the posterior parietal whorl toward the frontal hairline.