Systemic Langerhans Cell Histiocytosis: A Challenging Diagnosis

We present a case of a 3-year-old child with persistent, drug-resistant skin lesions that revealed systemic Langerhans cell histiocytosis. Through this case, we aim to describe the clinical and dermatological manifestations of systemic Langerhans cell histiocytosis in children. We present a case of a 3-year-old child who was admitted to the pediatrics department with skin lesions lasting for 3 months. The patient had no remarkable medical history. The pregnancy was complicated by gestational hypertension. In our observation, the classic triad of exophthalmos, central diabetes insipidus, and bone cavities, along with characteristic histopathological features and positive CD1a immunostaining, led to the diagnosis of histiocytosis. A skin biopsy, which is simple and non-invasive, is crucial for diagnosis, in conjunction with a thorough clinical examination. Prompt management following appropriate protocols can significantly improve prognosis.