Pathological changes of cecal hepatitis in chickens

The main lesions were in the cecum and liver. In the early or acute stage of the disease, the cecum was enlarged, the cecal mucosa showed hemorrhagic inflammation, the intestinal wall thickened, sausage-like, the cecum was filled with caseous emboli to block the intestinal tube, and necrosis of the serous layer and muscular layer could be seen after dissection. Sometimes cecal perforation causes systemic peritonitis. The liver is enlarged and brittle, with necrotic foci ranging from rice kernels to corn kernels. The necrotic foci are concave, with slight protuberances around them, yellowish or light green. In severe cases, the necrotic foci are continuous or permeate the whole liver.