Endovascular Treatment of Inferior Mesenteric Artery Avulsion Caused by Blunt Abdominal Trauma

performed for an additional 5 minutes. The patient tolerated the procedure well and experienced only mild soreness immediately after the procedure. She was discharged home after 2 hours of standard monitoring in the postanesthesia recovery area. Radiographs of the pelvis 2 weeks after the procedure revealed no abnormalities, and the patient reported complete relief of pain at that time. A focused physical examination was performed to assess pain, proprioception, and sensation with no deficits detected. The patient reported no pain or sensory loss at 2-, 4-, and 6-month follow-up examinations. Follow-up magnetic resonance imaging was not performed because of the benign nature of the tumor and the patient’s excellent clinical response. Treatment of symptomatic benign PNSTs typically involves open surgical resection. Benign PNSTs are slow-growing, often painful tumors. Historically, the treatment of PNST consisted of open surgical resection of the tumor and often portions of the adjacent nerve (2,3). Although surgical resection is the gold standard of care, there are cases in which the location of the PNST precludes open surgery as a reasonable option (4), such as one described here. PNSTs may be divided into benign and malignant subtypes. Schwannomas are a benign variant and may require intervention if they become symptomatic. Pain is typically due to either mass effect compressing the nerve itself or compression against an osseous structure. Although cryoablation performed in nerve-rich areas carries the risk of potential nerve damage and deficits, this case demonstrates cryoablation as a viable technique for definitive treatment of isolated PNSTs.