Donovan bodies /don″əvan/ [Charles Donovan, Irish physician, 1863–1951] , encapsulated gram-negative rods of the species Calymmatobacterium granulomatis, present in the cytoplasm of mononuclear phagocytes obtained from the lesions of granuloma inguinale. They may be seen under the microscope in a Wright-stained smear of infected tissue. See also granuloma inguinale.