Abstract
Thyroid hemiagenesis is a rare congenital anomaly, in which one thyroid lobe fails to develop. Thyroid hemiagenesis is associated with thyroid diseases such as Graves' disease, Hashimoto's thyroiditis, colloidal goiter and thyroid follicular and papillary cancer. A 53-year-old female patient was diagnosed with a thyroid nodule on health examination. A 99mTc pertechnetate thyroid scan showed absent uptake in the left lobe and cold nodule on the right lobe of thyroid gland. By ultrasonography, we found hemiagenesis in the left thyroid gland and an irregular shaped thyroid nodule on the right lobe of thyroid gland. We performed ultrasonography guided fine needle aspiration and cytologic analysis showed indeterminate nature. Thyroidectomy was performed and finally diagnosed follicular carcinoma of thyroid gland. The authors report this case with a literature review.
References
1. Hamburger JI, Hamburger SW. Thyroidal hemiagenesis. Report of a case and comments on clinical ramifications. Arch Surg. 1970. 100:319–320.
2. Shabana W, Delange F, Freson M, Osteaux M, De Schepper J. Prevalence of thyroid hemiagenesis: ultrasound screening in normal children. Eur J Pediatr. 2000. 159:456–458.
3. Bando Y, Nagai Y, Ushiogi Y, Toya D, Tanaka N, Fujisawa M. Development of Graves' hyperthyroidism from primary hypothyroidism in a case of thyroid hemiagenesis. Thyroid. 1999. 9:183–187.
4. Marwaha RK, Khanna CM, Gupta RK, Sharma R. Hemiagenesis associated with chronic lymphocytic thyroiditis. J Assoc Physicians India. 1990. 38:507–508.
5. Rashid HI, Yassin J, Owen WJ. A case of Graves' disease in association with hemiagenesis of the thyroid gland. Int J Clin Pract. 1998. 52:515–516.
6. Shibutani Y, Inoue D, Koshiyama H, Mori T. Thyroid hemiagenesis with subacute thyroiditis. Thyroid. 1995. 5:133–135.
7. Khatri VP, Espinosa MH, Harada WA. Papillary adenocarcinoma in thyroid hemiagenesis. Head Neck. 1992. 14:312–315.
8. McHenry CR, Walfish PG, Rosen IB, Lawrence AM, Paloyan E. Congenital thyroid hemiagenesis. Am Surg. 1995. 61:634–638.
9. Han HS, Kim JW, Suh KS, Kim JS, Yoo HJ. A case of thyroid hemiagenesis. Korean J Med. 1990. 38:137–140.
10. Kim MR, Chung CH, Lim SK, Kim KR, Lee HC, Huh KB. A case of thyroid hemiagenesis with primary myxedema. J Korean Endocr Soc. 1990. 5:149–154.
11. Han JH, Cha BY, Son HY, Ahn YB, Lee KW, Kang SK, Oh SJ, Na JS, Jang SA, Kang MI. A case of thyroid hemiagenesis with papillary adenocarcinoma. J Korean Endocr Soc. 1994. 9:385–389.
12. Park SG, Ryu JW, Myung NH. Thyroid hemiagenesis and ectopic thymus at thyroid bed, and papillary cancer in opposite thyroid lobe with hyperthyroidism. J Korean Surg Soc. 2000. 58:433–437.
13. Ko BS, Kim KC, Bae HY. Thyroid hemiagenesis. J Korean Surg Soc. 2003. 65:69–71.
14. Marshall CF. Variations in the form of the thyroid gland in man. J Anat Physiol. 1895. 29:234–239.
15. Melnick JC, Stemkowski PE. Thyroid hemiagenesis (hockey stick sign): a review of the world literature and a report of four cases. J Clin Endocrinol Metab. 1981. 52:247–251.
16. Karabay N, Comlekci A, Canda MS, Bayraktar F, Degirmenci B. Thyroid hemiagenesis with multinodular goiter: a case report and review of the literature. Endocr J. 2003. 50:409–413.
17. Clifton-Bligh RJ, Wentworth JM, Heinz P, Crisp MS, John R, Lazarus JH, Ludgate M, Chatterjee VK. Mutation of the gene encoding human TTF-2 associated with thyroid agenesis, cleft palate and choanal atresia. Nat Genet. 1998. 19:399–401.