All of the following perforating disorders are associated with chronic renal failure EXCEPT:: (A) Reactive perforating collagenosis, (B) Calciphylaxis, (C) Elastosis perforans serpiginosa, (D) Kyrle disease
Answer is B. Perforating disorders of skin characterized by transepidermal elimination of dermal connective tissue Example* Perforating folliculitis* Kyrle disease* Elastosis perforans serpiginosa* Reactive perforating collagenosis* Acquired perforating dermatosisUsually associated with DM & CRFCalciphylaxis is also seen in patient with CRF but not a perforating disorder