• Dong Jin Park, Donghyoun Lee, and In Kyu Park.
• Department of Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea.
• Medicine (Baltimore). 2024 Jul 26; 103 (30): e39075e39075.

IntroductionPneumatosis cystoides intestinalis (PCI) is a rare condition characterized by multiple gas-filled cysts in the gastrointestinal tract and is associated with numerous conditions. Benign PCI can occur secondary to certain medications, such as anticancer-targeted therapies. Here, we report a rare case of PCI that developed following sunitinib therapy for metastatic RCC and was successfully managed with conservative treatment without surgery.Patient ConcernsA 57-year-old woman with a medical history of metastatic renal cell carcinoma (RCC) referred to the Department of General Surgery after completion of the 16th cycle of sunitinib because of abnormal findings on abdominopelvic computed tomography (CT), suggesting necrotizing enteritis with pneumoperitoneum involving the ileum. At the time of presentation to the Department of General Surgery, she was asymptomatic and had no abnormal findings on examination other than the imaging findings.DiagnosisSunitinib-induced PCI, metastatic RCC, liver cirrhosis, and diabetes mellitus.InterventionsShe was admitted to the general ward for conservative treatment, and sunitinib was discontinued. Conservative treatments included nil per os, total parenteral nutrition, antibiotics, H2-blockers, and oxygen therapy.OutcomesOn the fifth day of hospitalization, the PCI showed moderate resolution on plain radiography, and she was discharged on the seventh day. Follow-up CT imaging 3 months later demonstrated complete resolution of PCI.ConclusionThis case emphasizes that the decision between conservative versus surgical treatment for PCI should be based not solely on radiological findings but rather on a comprehensive assessment, including the underlying condition, vital signs, physical examinations, and blood tests.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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