Perforating folliculitis in Down’s syndrome − a rare case report

Perforating folliculitis is a primary perforating disorder, characterized by the phenomenon of transepidermal elimination. It is associated with various disorders such as psoriasis, juvenile acanthosis nigricans, diabetic mellitus, renal failure, cardiac failure, and malignant neoplasia. Other primary perforating dermatoses are Kyrle’s disease, reactive perforating collagenosis, and elastosis perforans serpiginosa. Among the association of perforating dermatoses with genetic diseases like Down’s syndrome, elastosis perforans serpiginosa and very rarely reactive perforating collagenosis have been reported. We report the first case of an 11-year-old boy who is a known case of Down syndrome presented with perforating folliculitis.