<unk>  is a skin condition affecting primarily women, characterized by the loss of subcutaneous fat in the upper extremity. It is a form of lipodystrophy.
Lipoatrophia annularis
Pachyonychia congenita
Platonychia
Trichodysplasia spinulosa
Balanitis circinata
Erythrokeratodermia variabilis
Pili pseudoannulati
Hapalonychia