Which condition is characterized by diabetes insipidus, bone lesions, and exophthalmos?

Explanation

Hand-Schüller-Christian disease is a form of Langerhans cell histiocytosis that presents with the classic triad of diabetes insipidus, lytic bone lesions, and exophthalmos. This distinguishes it from other disorders such as sickle cell anemia, Niemann-Pick disease, and Letterer-Siwe syndrome.