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Case No. 185
0000-00-00~0000-00-00
출제자 : 관리자
Hit : 308
| Period | 0000-00-00~0000-00-00 |
|---|---|
| Diagnosis | |
| Clinical information | 32세 여자. 6개월 전부터 크기 증가하는 anterior neck mass 로 내원. |
| Discussion | Papillary carcinoma arising from thyroglossal duct cyst Thyroid carcinoma arising in a thyroglossal duct cyst is rare, affecting less than 1% of cysts. The histologic findings of thyroglossal duct carcinoma are most commonly papillary carcinoma (75?0%), but other thyroid tumors such as follicular, H?thle cell, and mixed papillary and follicular carcinomas have been reported. Most benign thyroglossal duct cysts contain microscopic foci of thyroid tissue, which are presumably the source of thyroglossal duct carcinoma. The carcinomas had either a dense or enhancing mural nodule, calcification within the cyst, or both. The contrast-enhanced CT studies could not distinguish between inherently dense nodules and enhancing nodules. Calcifications are present in 60% of papillary carcinomas arising in the thyroid gland. These calcifications correspond to the psammoma bodies that are visible histologically. References Branstetter et al. The CT Appearance of Thyroglossal Duct Carcinoma. American Journal of Neuroradiology 2000;21:1547-1550 |
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