A 53-year-old female complained of a growth in the left side of the neck. A tumor was found at the carotid triangle. It was elastic soft and measured approximately 3.0×3.2cm in size. Ultrasound scan confirmed the mass, which was well demarcated, solid, and with a complex echotexture. CT scans revealed that the tumor was located inside the sternocleidomastoid muscle and showed partly high-density-area suggestive of calcification.
The tumor was removed en bloc and showed no connection to the thyroid. The macroscopic appearance more closely resembled thyroid tissue than cervical lymph node. Pathohistologically, it was normal thyroid tissue with thyroid follicles of varying sizes. There was no evidence of malignancy.
