Disseminated juvenile xanthogranuloma secondary to chemotherapeutic treatment of acute lymphoblastic leukemia

Juvenile xanthogranuloma is a benign, reactive, self-limiting disorder within the non-Langerhans cell histiocytosis group. It primarily affects infants and preschoolers, and occasionally in adults. Some cases report concurrent non-LCH and leukemia, with bone marrow being the second common pathology. We present a case of JXG with acute lymphoblastic leukemia in a 17-year-old male. Emphasizing the importance of considering the possibility of apparently disparate disorders in a patient, especially with unusual clinical findings.