A 50-year-old female with no significant medical history initially presented to an urgent care center with symptoms of acute onset abdominal pain, nausea, and emesis. Chest and abdominal X-ray revealed free air under the diaphragm, prompting immediate transfer to the emergency department. Continued abdominal tenderness and pain were concerning for perforated viscus. The patient was transferred to the operating room, and diagnostic laparoscopy was performed. Inflammation and contamination were discovered in the right side of the abdomen and pelvis secondary to a small bowel (SB) perforation. Segmental SB resection revealed a perforated diverticulum. Pathological examination confirmed a diagnosis of gastrointestinal stromal tumor (GIST) at the perforated segment. On postoperative day 5, the patient was discharged home, and at 30-month follow-up, the patient continued to do well. Although rare, SB diverticula are commonly false (i.e., pseudodiverticula). The concomitant presence of a GIST in a true SB diverticulum presenting with perforation has not yet been reported.
Case Rep Gastroenterol 2021;15:667–673

中文翻译：

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小肠憩室中胃肠道间质瘤的异常表现

一名 50 岁女性，无明显病史，最初因急性腹痛、恶心和呕吐症状到急诊中心就诊。胸部和腹部 X 光片显示横膈膜下有游离空气，促使立即转移到急诊科。持续的腹部压痛和疼痛与穿孔内脏有关。患者被转移到手术室，并进行了诊断性腹腔镜检查。在小肠 (SB) 穿孔继发的腹部和骨盆右侧发现炎症和污染。SB 节段切除显示憩室穿孔。病理检查证实在穿孔段诊断为胃肠道间质瘤（GIST）。术后第 5 天，患者出院回家，并在 30 个月的随访中，病人继续保持良好状态。尽管罕见，SB 憩室通常是假的（即假憩室）。尚未报道在真正的 SB 憩室中伴有 GIST 并伴有穿孔。
Case Rep Gastroenterol 2021；15:667–673