关键词: 猫, 直肠部分狭窄, 猫血清淀粉样蛋白A, 计算机断层扫描, 组织病理

Abstract: There are numerous factors contributing to partial rectal stenosis in cats，including congenital and acquired ones. Common clinical symptoms include abnormal defecation，abdominal distension and pain，and intestinal obstruction. Partial rectal stenosis can be preliminarily diagnosed through computed tomography（CT）and magnetic resonance imaging（MRI），but a definitive diagnosis requires histopathological examination. This paper details the examination process of the affected cats，the surgical plan，and the postoperative recovery situation. Before the surgery，computer tomography（CT），magnetic resonance imaging（MRI），ultrasound，cat serum amyloid A （fSAA），biochemical and blood tests were used to assist in diagnosis. During the surgery，the diseased tissue was removed and sent for histopathological examination. The postoperative recovery was tracked and the diagnosis process was analyzed to provide clinical reference.

Key words: Partial rectal stenosis, Computed tomography, Magnetic resonance imaging, Clinical diagnosis