Gastrointestinal LCH: a rare manifestation of Langerhans cell histiocytosis.

Introduction: Langerhans cell histiocytosis (LCH) is a rare neoplasm marked by the proliferation of Langerhans cells, primarily affecting children under 2 years old. Gastrointestinal (GI) involvement in LCH is uncommon and often part of widespread disease.

Case Presentation: We report a 16-year-old female with a history of LCH, previously treated with 6-mercaptopurine and vinblastine, who presented with bloody diarrhoea, abdominal pain, and vomiting.