RESUMEN
BACKGROUND: Diaper (irritative) dermatitis is commonly encountered in pediatric practice. In severe cases, unusual lesions could mimic other vulvar dermatoses or sexually transmitted infections. CASE: A 4-year-old female refugee with urinary and fecal incontinence was referred for medicolegal evaluation (concern for childhood sexual abuse) due to presence of diffuse vulvar, perineal, and perianal lesions. Evaluation and histology were consistent with pseudoverrucous papules and nodules. Resolution occurred following frequent diaper changes and application of a protective ointment. DISCUSSION: Pseudoverrucous papules and nodules are a rare complication of irritative diaper dermatitis with variable appearance. Urinary or fecal incontinence are primary risk factors that should raise suspicion among clinicians when atypical genital or buttocks lesions appear. Biopsy is not always necessary but could be warranted when the diagnosis is uncertain or if childhood sexual abuse is suspected.