Neonatal Consultations: Persistent Diaper Rash and Langerhans Cell Histiocytosis

The presentation discusses two neonatal cases involving persistent diaper rash and Langerhans Cell Histiocytosis (LCH). The first case features a six-week-old infant with scaly papules and plaques, initially considered a common diaper rash, but further examination revealed a more complex condition. The baby exhibited signs of LCH, confirmed through biopsy results showing eosinophilic cells and CD1A positivity, along with imaging showing lesions impacting the orbital area. Treatment began with chemotherapy and prednisone. The second case was a three-week-old baby with recurrent scrotal ulcerations diagnosed with neonatal lupus due to positive maternal antibodies (SSB) and subtle skin lesions. The discussion highlighted the importance of differential diagnosis in cases of diaper rash, noting conditions like allergic dermatitis, infections, and more serious conditions like LCH and lupus. Management strategies for both conditions were outlined, emphasizing early diagnosis and the need for multidisciplinary approaches, including oncology consultations for LCH and potential cardiac evaluations for neonatal lupus. The cases underscore the complexity of dermatological presentations in neonates and the critical role of timely intervention.