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  • Title: Inverted Meckel's diverticulum: a case report.
    Author: Bains L, Bhatia R, Kaushik R, Lal P, Rajpaul G, Veerpal.
    Journal: J Med Case Rep; 2021 May 22; 15(1):264. PubMed ID: 34020701.
    Abstract:
    BACKGROUND: Inverted Meckel's diverticulum refers to the condition in which the diverticulum inverts on itself. The reasons for such an inversion are poorly understood due to the rarity of the condition. We present a case of inverted Meckel's diverticulum, an uncommon finding, as a cause of recurrent intussusception. CASE PRESENTATION: A 30-year old Indian woman presented with complaints of pain in the central abdomen for 3 days, accompanied with vomiting and loose stools. Computed tomography images were suggestive of intussusception with intestinal obstruction. Intra-operative findings were suggestive of an intussuscepted segment of ileum measuring 10 cm in length, proximal to ileocecal junction. Ileo-ileal anastomosis was performed after appropriate resection. Upon opening the specimen, we were surprised to find an inverted Meckel diverticulum with lipoma at one end causing the intussusception. The patient made an uneventful recovery and was discharged after 5 days. CONCLUSION: The reasons for inversion include abnormal peristalsis around the diverticulum and non-fixity of the diverticulum itself. The inverted diverticulum itself can cause luminal compromise and acts as a lead point for intussusception leading to obstruction. Computed tomography remains the diagnostic tool of choice for identifying intestinal obstruction and intussusception. Although pathological signs, such as lipoma, can be identified, the identification of any inversion will require a proficient radiologist. Inverted Meckel's diverticulum is a rare condition which is difficult to diagnose preoperatively. Treatment is surgical, whether diagnosed pre-operatively or intra-operatively, and includes segmental resection and anastomosis. This uncommon condition should be noted as one-off differential diagnosis for intussusception and intestinal obstruction.
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