Sliman Michael, Rudinsky Adam J, Lumbrezer Sarah, Winston Jenessa A, Parker Valerie J, Lorbach Sarah, Howard James
Department of Veterinary Clinical Sciences, The Ohio State University, Columbus, OH, USA.
Comparative Hepatobiliary and Intestinal Research Program, The Ohio State University, Columbus, OH, USA.
Case Rep Vet Med. 2022 Feb 14;2022:2827118. doi: 10.1155/2022/2827118. eCollection 2022.
Spontaneous pneumothorax (SPT) is a documented emergency of the respiratory tract condition classified as either primary or secondary based on the presence of underlying pulmonary conditions. All reported SPT in the feline literature are evaluated for respiratory clinical signs. Primary SPT without underlying pathology or without clinical signs is not reported in cats. This case report describes a 10-year-old domestic longhair cat that was referred for evaluation of chronic lethargy with severe azotemia and placement of a subcutaneous ureteral bypass (SUB) system. Prior to presentation, the cat was diagnosed with renal insufficiency and treated medically with no resolution. Clinical examination under sedation revealed right-sided renomegaly. Thoracic radiographs revealed gas in the caudodorsal pleural space and concurrent pulmonary atelectasis. No respiratory clinical signs were present. Thoracic CT showed two pulmonary bullae, one located in the right caudal lung lobe and one in the cranial segment of the left cranial lung lobe. Abdominal ultrasound showed a right-sided ureteral obstruction. Medical management was elected for the spontaneous pneumothorax. A SUB was placed to address the ureteral obstruction; no complications were noted during recovery. The cat was free of clinical signs of respiratory disease after a follow-up time of nine months. This is the first reported case of a cat diagnosed with a nonclinical suspected primary spontaneous pneumothorax with no concurrent predisposing pulmonary pathology.
自发性气胸（SPT）是一种有记录的呼吸道急症，根据是否存在潜在肺部疾病可分为原发性或继发性。猫科动物文献中报道的所有SPT病例均针对呼吸临床症状进行了评估。猫中未报道过无潜在病理或无临床症状的原发性SPT。本病例报告描述了一只10岁的家养长毛猫，因慢性嗜睡伴严重氮质血症被转诊评估，并接受了皮下输尿管旁路（SUB）系统植入。就诊前，该猫被诊断为肾功能不全并接受药物治疗但无好转。镇静下的临床检查发现右侧肾肿大。胸部X光片显示尾背侧胸膜腔有气体，同时存在肺不张。无呼吸临床症状。胸部CT显示两个肺大疱，一个位于右尾叶，一个位于左颅叶的颅段。腹部超声显示右侧输尿管梗阻。对于自发性气胸选择了药物治疗。植入SUB以解决输尿管梗阻问题；恢复过程中未发现并发症。随访9个月后，该猫无呼吸道疾病的临床症状。这是首例报道的诊断为非临床疑似原发性自发性气胸且无并发易患肺部病理改变的猫病例。
