Jacquet Papuloerosive Dermatitis in an Adult: An Uncommon Presentation of a Predominantly Pediatric Condition

Jacquet papuloerosive dermatitis (JPD) is an uncommon and severe variant of irritant contact dermatitis that predominantly affects the anogenital region.Although it is most frequently described in infants, it may rarely occur in adults, particularly in the setting of urinary or fecal incontinence.We report the case of a 70year-old woman with cystocele and urinary incontinence who presented with painful anogenital ulcers characterized by a punched-out appearance, granulation tissue, mucopurulent discharge, and sharply demarcated, elevated borders.An infectious workup, including testing for human immunodeficiency virus (HIV), syphilis, herpes simplex virus, and bacterial infection, was ruled out.Histopathological examination revealed epidermal acanthosis, dilated dermal vessels, a sparse inflammatory infiltrate composed of lymphocytes and neutrophils, and thickened collagen fibers.Based on the clinical presentation, history of urinary incontinence, exclusion of infectious causes, and nonspecific histopathological findings, JPD was diagnosed.Treatment with zinc oxide ointment twice daily, together with frequent diaper changes and measures to minimize prolonged exposure to urine, resulted in marked clinical improvement after two months.This case highlights JPD as an important differential diagnosis of erosive anogenital lesions in adults with incontinence.Recognition of this uncommon presentation facilitates early implementation of treatment.