<unk>  is identified as a form of an acquired perforating disease. Other major perforating diseases are elastosis perforans serpiginosa and reactive perforating collagenosis. Recently, however, there is a controversy on categorizing<unk>  with perforating dermatosis or a subtype of acquired perforating collagenosis.<unk>  was first described by Josef<unk>  in 1916 when a diabetic woman presented generalized hyperkeratotic nodules. The disease is distinguished by large papules with central keratin plug on the skin, usually on the legs of the patient and is often in conjunction with liver, kidney or diabetic disorders. It can affect both females and males with a 6:1 ratio. The papules usually show up on the patient with an average age of 30 years.<unk>  is a rare disease unless there is a high count of patients with chronic kidney failure. The disease seems to be more prevalent in African Americans, which can be correlated to the high incidence of diabetes mellitus and kidney failure in the population.
Kyrle disease
Haff disease
Degos disease
Salla disease
Camisa disease
Bayoud disease
Borna disease
Pott disease