A rarely encountered case: A neuroendocrine tumor in strangulated Littre's hernia.

Littre's hernia is a rare condition that involves Meckel's diverticulum in the hernia sac. Meckel's diverticulum is the true diverticulum of the small intestine. Neuroendocrine tumors may develop in it; however, there are very few reported cases. In this study, we present a case of neuroendocrine tumor in strangulated Littre's hernia, on which we did not find a study when we reviewed the relevant literature. A 71-year-old male patient presented to our outpatient clinic with complaints of left groin pain and swelling in the groin. Acute abdomen findings were also present in the abdominal examination of the patient. The patient was operated on immediately and it was observed during the operation that the herniated Meckel's diverticulum was perforated. Segmental small intestine resection was performed. The pathology results of the patient revealed a well-differentiated neuroendocrine tumor with mucosal and submucosal localization in Meckel's diverticulum. We believe that if Meckel's diverticulum is found in the hernia sac in incarcerated hernias, it must be completely resected as a neuroendocrine tumor may develop, even if only rarely.