Neoplasia and infectious disease in the critically endangered species Crax alberti

Abstract The following report presents the results of clinical, pathological and, histopathological analyses of two individuals of Crax alberti, a critically endangered species. One individual was diagnosed with cholangiocellular carcinoma with concurrent respiratory involvement, while the other presented pneumonia associated with Mycoplasma spp., with secondary renal involvement. In captive conditions, increased longevity and close contact between individuals may favor the occurrence of infectious and neoplastic conditions, as observed in these cases.