Introduction. Mesenteric lymphatic malformations are rare, benign tumors that are most commonly found in children. The presentation of these tumors is variable and may either be innocuous or life threatening. It has been suggested that mesenteric lymphatic malformations are congenital; however, there is evidence that their growth may be stimulated by local trauma. Case presentation. We describe the first case of a mesenteric lymphatic malformation associated with acute appendicitis in a 13-year-old Caucasian boy. The patient is well six months after surgical excision of the tumor. Conclusion. The reader should be aware that growth and/or development of mesenteric lymphatic malformations may be associated with trauma and other pro-inflammatory processes.
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