Abnormal amino acid composition of nails in Bazex's paraneoplastic acrokeratosis

Bazex's paraneoplastic acrokeratosis is a syndrome with psoriasiform acral hyperkeratosis and nail changes associated with carcinoma of the upper respiratory or alimentary tract. We report here a case where amino acid analysis of the hyperkeratotic and friable nails differed from normal and other diseased nails investigated by us, but they were similar to those reported in trichothiodystrophy or the BIDS syndrome.