先证者双肘膝关节毛囊角化性丘疹，足趾及跖部灶性胼胝样角化过度，20甲营养不良。

Proband also had special clinical feature including follicular hyperkeratosis on the elbows and knees, and onychodystrophy of 20 nails as well.

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先证者双肘膝关节毛囊角化性丘疹，足趾及跖部灶性胼胝样角化过度，20甲营养不良。

Proband also had special clinical feature including follicular hyperkeratosis on the elbows and knees, and onychodystrophy of 20 nails as well.

youdao