Congenital ichthyosis, follicular atrophoderma, hypotrichosis, and hypohidrosis: A new genodermatosis?

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Abstract
Follicular atrophoderma is a rare anomaly observed mainly in the X‐dominant form of chondrodysplasia punctata (Conradi‐Hünermann‐Happle syndrome) and in the X‐linked dominant Bazex syndrome. We report on five Emirati sibs (three girls and two boys), 4–18 years old, with normal stature, diffuse congenital ichthyosis, patchy follicular atrophoderma, generalized and diffuse non‐scarring hypotrichosis, and marked hypohidrosis. Steroid sulfatase activity, assessed in the two boys, was found to be normal. Electron microscopic studies of ichthyotic skin did not show any specific abnormality. The association of congenital diffuse ichthyosis with follicular atrophoderma and hypotrichosis has not been reported before. The patients were reminiscent of Bazex syndrome; however, ichthyosis is not a component of Bazex syndrome. We conclude that this syndrome of congenital ichthyosis with follicular atrophoderma represents a new autosomal recessive genodermatosis. Am. J. Med. Genet. 75:186–189, 1998.