author(s)
Sonali Mishra, Pawan Kumar, Javeed Ahmad Dar, Vidya Singh, Kunal Pandit and Dwipjyoti Mahanta

abstract
The present study was aimed to monitor the lung lesions with special emphasis on pulmonary adenocarcinoma caused by Jaagsiekte Sheep Retrovirus (JSRV) in sheep and goats, as lung tumors occur mainly in sheep but goats are affected rarely. In present case, the goat lung grossly showed multifocal nodular areas and the tissue sample was collected in 10% neutral buffered formalin. Then tissue sample was processed for histopathology and examined. The lung tissues microscopically showed typical lesions of OPA viz. proliferated pneumocytes forming adenoid pattern and papillary projections in the lumen. Bronchial epithelial lining cells were also showing hyperplastic change and papillary growths in the lumen. It can be concluded that OPA is prevalent in goat population but a targeted study is required to know its prevalence in goats.