Gross and Microscopic Study of Pneumonic Lungs, Liver and Intestine from Peste des Petits Ruminants (PPR) Suspected Dead Goat in Sylhet Region of Bangladesh

Abstract

Four dead goats were collected at regional veterinary hospital, Sylhet, Bangladesh with previous history of anorexia for 3 days, diarrhoea, oculo-nasal discharge and high fever. At necropsy, congested and pneumonic lung, zebra striping in colon were characteristic findings in all four goat carcasses but stomatitis was observed in two goats who showed erosion in lips and gum during external examination. Liver lesions were not prominent upon external examination. Histopathological analysis revealed that, there were interstitial pneumonia along with sloughing of bronchial epithelium in lungs from all four goats. Prominent type II pneumocytes caused expansion of alveolar wall in all four goats. Out of four, only one goat was found with the presence of syncytial cell in the alveoli. Numerous inflammatory cells were found in the submucosa and lamina propria of intestinal samples collected from all four goats. Vacuolar degeneration and syncytial cells were observed in hepatocytes of liver samples from two goats. Periportal multifocal lymphocytic infiltrations were common in liver parenchyma. Gross and microscopic lesions were similar to the previous pathomorphological studies of PPR conducted by several other authors, which validate the present cases of suspicion of PPR infection.