Endocrine Abstracts

The conversion of Hashimoto thyroiditis (HT) to hypothyroidism is frequently observed in daily clinical practice, but the development of Grave’s disease (GD) after long-standing hypothyroidism is rare and intriguing. A 70-year-old woman visited an endocrinologist, complaining of increased heart rate, anxiety, and a feeling of discomfort in the neck. Past medical history revealed HT with hypothyroidism. Laboratory tests showed significantly increased thyroid-stimulating ho...

The detection and characterization of PTC are based on the evaluation of specific ultrasonographic features of thyroid nodes. However, there is limited data regarding diagnostics without typical malignant-appearing nodules. We report a very rare case of PTC in underlying chronic lymphocytic thyroiditis ultrasonographically manifested with diffuse microcalcification without focal mass. A 22-year-old woman visited our institution complaining of weight loss, general weakness, and...

Anaplastic thyroid carcinoma (ATC) is a rare form of thyroid carcinoma that is associated with an extremely poor prognosis. Ultrasonography (US) and subsequent fine needle aspiration biopsy (FNAB) are the first diagnostic methods in the assessment of a palpable thyroid mass. Nevertheless, some clinical and US features of ATC are not specific. Here, we report on an extremely rare case of ATC masquerading as subacute thyroiditis (SAT).A 40-year-old woman w...