<unk>  is an inherited disorder of the bone.
Men and women are affected in equal number.
It can be associated with melorheostosis.
It has been tied to LEMD3.
Buschke-Ollendorff syndrome is a similar condition, which is also associated with LEMD3.
Osteopoikilosis
Pitted nails
Polydactyly
Hyperostosis
Dactyly
Acanthosis nigricans
Brittle nails
Xerosis