1Center for Wild Life Conservation, Management and Disease Surveillance Indian Veterinary Research Institute, Izatnagar-243 122 (U.P.)
22Division of Bacteriology & Mycology, Center for Wild Life Conservation, Management and Disease Surveillance Indian Veterinary Research Institute, Izatnagar-243 122 (U.P.)
*Corresponding author: aksharmaivri@rediffmail.com
Generalized tuberculosis in a Nilgai (Boselpahus tragocamelus) caused by Mycobacterium fortuitum was diagnosed on the basis of isolation and identification of M. fortuitum, PCR assay based on IS6100, gross and histopathology. Grossly, the lesions in lungs were characterized by presence of variable sized milliary caseo-calcified nodules embedded in parenchyma as well as slightly elevated from the surface which contained cheesy mass. Histopathological lesions in lungs were characterized by areas of diffuse caseous necrosis with at times calcification. The necrotic areas were surrounded by cellular reaction comprised of lymphocytes, macrophages and epithelioid cells. Giant cells were absent except at few places where macrophages were seen in the process of fusion. The microscopic granulomas so formed were not encircled by fibrous connective tissue and seen advancing into the adjacent parenchyma
M. fortuitum, Nilgai, Tuberculosis
