Riedel's thyroiditis in a patient with recurrent subacute thyroiditis: a case report and review of the literature.
Riedel's thyroiditis is a rare form of chronic thyroiditis, characterised by a fibroinflammatory process that partially destroys the thyroid and often involves surrounding tissues. The relationship of Riedel's thyroiditis to other forms of thyroiditis is not clear. A case of Riedel's thyroiditis in a 51-year-old woman presenting with symptoms of subacute thyroiditis, is reported. She was diagnosed with subacute thyroiditis based on clinical manifestation and laboratory results. She was treated with glucocorticoids for six weeks, and then followed-up for 12 months. Three years later, she visited with tenderness and enlargement of thyroid mass, and laboratory and radiology findings suggested that she had a malignant thyroid tumor as well as subacute thyroiditis. After thyroidectomy, histopathologic findings showed that she had Riedel's thyroiditis in the presence of subacute thyroiditis. Until now, few cases of Riedel's thyroiditis in patients with a history of subacute thyroiditis have been reported in the literature. Although the etiology of Riedel's thyroiditis is unknown, it may develop in the course of subacute thyroiditis.
Cho
Min Ho
MH
Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
Kim
Chul Sik
CS
Park
Jong Suk
JS
Kang
Eun Seok
ES
Ahn
Chul Woo
CW
Cha
Bong Soo
BS
Lim
Sung Kil
SK
Kim
Kyung Rae
KR
Lee
Hyun Chul
HC
D005260:Female; D006801:Humans; D008875:Middle Aged; D012008:Recurrence; D013670:Sodium Pertechnetate Tc 99m; D013965:Thyroidectomy; D013968:Thyroiditis, Subacute / Q000175:diagnosis* / Q000276:immunology / Q000601:surgery
D013670:Sodium Pertechnetate Tc 99m