Histopathological , Enzyme - Histochemical and Immunohistochemical Diagnosis of Mast Cell Tumors in the Skin of Golden Hamster

Abstract

One hundred and nineteen grossly affected ovine lungs were collected from Buraydah abattoir as well as from necropsy materials at the Veterinary Teaching Hospital of Qassim University. The histopathologic examination revealed two lesion categories. The first was inflammatory lesios, in descending order of prevalence, including fibrinous bronchopneumonia, suppurative bronchopneumonia, interstitial pneumonia, fibrinopurlent bronchpneumonia, verminous bronchopneumonia, granulomatous pneumonia, and respiratory syncytial virus pneumonia. The second was neoplastic cases, in the form of ovine pulmonary adenomatosis.