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

摘要： 猫直肠部分狭窄的诱导因素有先天性因素和后天性因素。常见的临床症状是排便异常、腹部胀痛、肠梗阻等。直肠部分狭窄可以通过计算机断层扫描（CT）以及磁共振成像（MRI）进行初步诊断，但最终确诊需要通过组织病理学检测确诊。该文记录了患猫的检查过程及手术方案和术后恢复情况。术前借助计算机断层扫描（CT）、磁共振成像（MRI）、超声、猫血清淀粉样蛋白A（fSAA）、生化及血液检查，术中切除病变组织并送检，进行组织病理学检测，跟踪术后恢复情况，剖析诊疗过程，为临床提供参考。

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