Introduction:

abdominal tumors in pediatric ages can be of diverse origin including benign and malignant pathologies. Mesenteric cysts are rare tumors. They originate from the failure of the intestinal lymphatic nodules in communicating with the lymphatic or venous systems.

Two-case report:

three and 14 year-old male patients in pediatric ages, who came to emergency room with symptoms and signs of acute abdomen, at surgery mesenteric cysts of different origins were found, which were resected. Their evolution was satisfactory.

Conclusion:

mesenteric cysts are entities that when complicate can be causes of acute abdomen in pediatric ages, their diagnosis are difficult and mostly happens during the surgical procedure. The total resection of these cysts presents the least recurrence index.

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