<prompt> A triad of features consisting of multifocal bony defects,diabetes insipidus and exophthalmous is termed as:Hand-schulles-christian disease.Letterer-siwe disease.Hypersplenism.Burkitts lymphoma.  <response>: Hand-Schuller-Christian DiseaseA triad of features consisting of multifocal bony defects, diabetes insipidus and exophthalmos is termed Hand-Schuller-Christian disease. The disease develops in children under 5 years of age. The multifocal lytic bony. 