Abstract
Cartiliginous tumors of the hyoid bone are extremely rare. We discovered a case of chondroma originating from the right greater come of the hyoid bone. The patient was a 40 year old man who first noticed asymptomatic swelling in the right submandibular area ten years ago. The findings of CT and sialo-CT were useful for differential diagnosis from tumors originating in the submandibular gland. The tumor, and part of the right greater come of the hyoid bone, was resected surgically. This is the fifth case of a chondroma originating from the hyoid bone in world-wide literature.