Caecal dermoid cyst presenting as an appendicular mucocele on abdominal imaging

Background: Dermoid cysts are benign tumors rarely arising from the cecum. Also, including this report, 10 cases have been described in the literature, to our knowledge. Dermoid cysts are benign tumors rarely found in the cecum. A literature research has found only 9 other cases. Case: We describe the case of a healthy 44-year-old man with no surgical history, in whom a well-defined cystic-mass was incidentally found on abdominal computed tomography, presenting as an appendicular mucocele. An hemicolectomy was performed and pathological analysis revealed a dermoid cyst of the cecum. This paper describes the case of a healthy 44-year-old male with no prior surgical history, with a well-defined cystic mass found incidentally on abdominal computed tomography, thought to be an appendicular mucocele. After hemicolectomy and pathological analysis, this was revealed to be a dermoid cyst of the cecum. Conclusion: Although dermoid cysts are a rare tumor of the cecum, they should be considered in the differential diagnosis of a nontender palpate mass in right lower quadrant (RLQ) or cecal mass on imaging. Although rarely found in the cecum, a dermoid cyst should be included in the differential diagnosis of nontender palpable masses of the RLQ, or if revealed by imagery.