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

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。

youdao

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

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。

youdao