A rare case of carcinoid tumor in a tailgut cyst

Abstract

Tailgut cysts are rare congenital lesions that arise from the failure of regression of the embryological tailgut. We report a case of neoplastic transformation of tailgut cyst to carcinoid tumor which is exceedingly uncommon.

Keywords

• carcinoid tumor
• synaptophysin
• neuron-specific enolase
• chromogranin A
• tailgut cyst