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Abstract：
Meckel\'s diverticulum, a true diverticulum originating from the incomplete closure of the vitelline duct during embryologic development, rarely presents with carcinoid tumors. The coexistence of a Meckel\'s diverticulum and carcinoid tumor following laparoscopic sigmoid colectomy for diverticulitis is an uncommon phenomenon, with limited documented cases in the literature. We present a case of a 74-year-old male with a past medical history of hypertension and diverticulitis who underwent a laparoscopic sigmoid colectomy for dysplastic and cancerous changes of a polyp revealed during a screening colonoscopy. Initially, the patient\'s postoperative journey was uneventful with the resumption of regular bowel movements and favorable diet progression. However, he later presented to the emergency department for worsening abdominal pain and distension. Imaging prompted surgical intervention due to perforation and obstruction, resulting in the identification of a carcinoid tumor within a perforated Meckel\'s diverticulum. This case highlights the intricate challenges of postoperative complications, particularly the unexpected emergence of Meckel\'s diverticulum pathology following a colectomy. The atypical presentation, featuring a carcinoid tumor within a perforated Meckel\'s diverticulum, underscores the importance of evaluating abdominal symptoms postoperatively.
摘要：
Meckel的憩室,真正的憩室起源于胚胎发育过程中卵黄管的不完全闭合，很少出现类癌肿瘤。腹腔镜乙状结肠切除术治疗憩室炎后，Meckel憩室和类癌的共存是一种罕见的现象，文献中记录的案例有限。我们介绍了一例有高血压和憩室炎病史的74岁男性，他接受了腹腔镜乙状结肠切除术，原因是在结肠镜检查中发现息肉的增生异常和癌变。最初，患者的术后旅程顺利，恢复了规律的排便和良好的饮食进展。然而,他后来因腹痛和腹胀恶化而向急诊科就诊。由于穿孔和梗阻，影像学提示手术干预，从而鉴定出穿孔的Meckel憩室内的类癌肿瘤。这个案例突出了术后并发症的复杂挑战，尤其是在结肠切除术后出现了意外的Meckel憩室病理。非典型的介绍，在Meckel的憩室穿孔内有一个类癌肿瘤，强调术后评估腹部症状的重要性。
