Histopathological alteration of lung, small intestine and lymph nodes in calves suffering from typical clinical case of foot and mouth disease

الملخص EN

This study was designed to investigate the histopathological changes that occur in some organs during infection of calves with foot and mouth disease.

Autopsies from twenty six cases of calves aged 6 months to 1 year suffering from typical case of foot and mouth disease(FMD) were studied.

The results of histopathological alteration of the lung revealed emphysema of in the lung, also there clusters of pigment –laden macrophages, hemorrhage, dilatation of alveoli and accumulation of amorphous exudate .

The lesion of the intestine include hemorrhage, edema, thickening and hypertrophy of villi, also there are degeneration and necrosis of some intestinal gland.

Alteration in the lymph nodes showed atrophy of lymphoid nodules and accumulation of collagen fibers with hemorrhage.