INTRODUCTION Thyroid paraganglioma is a very rare malignant neuroendocrine tumor. Immunohistochemical features of thyroid paraganglioma are helpful for the diagnosis. CASE REPORT A 69-year-old female came to hospital with the presence of a growing thyroid nodule of the left lobe. Ultrasonic neck examination showed 5 cm hypoechoic nodule in the left thyroid lobe. Thyroid scintigraphy showed a ...

Though the thyroid gland has a rich vascular supply, incidence of metastatic disease from distant organs is rare. Here we present an unusual case of metastases to the thyroid with several interesting features. A 63-year-old male with history of adenocarcinoma of the right lobe lung (5 years prior to presentation), treated with surgery and chemotherapy, followed by new adenosquamous lung cancer ...

A pyramidal lobe of the thyroid gland is a common anatomic variant. However, primary malignancy of the pyramidal lobe is rare with the exception of cancer in a thyroglossal duct cyst. A 61-year-old morbidly obese woman presented with a 30 lb. weight loss and a large asymptomatic submental neck mass that extended to the base of her tongue. The mass was invading the hyoid bone and the sternohyoid...

Thyroid hemiagenesis is a rare congenital anomaly resulting from failure of one thyroid lobe development. We report a 23-year-old female presented with Hashimoto's thyroiditis in left lobe, associated with hemiagenesis of right lobe and isthmus which was previously diagnosed as Graves' hyperthyroidism, but developed further into Hashimoto's thyroiditis after being treated with antithyroid drugs...

Parotid metastasis originated from papillary thyroid carcinoma is extremely rare, especially as the first presentation of the disease. We present a 70-year-old man with a history of painless swelling in the right side of the neck. He was evaluated for parotid tumor and histopathologic examination revealed a poorly differentiated carcinoma in the parotid gland with suspicion of thyroid origin. T...

Thyroid metastases from lung cancer are very rare. A woman aged 42 years with a tumour in the lower lobe of the right lung was diagnosed as having lung adenocarcinoma positive for echinoderm microtubule-associated proteinlike 4-anaplastic lymphoma kinase. Positron emission tomography demonstrated fluorodeoxyglucose accumulation in the lower lobe of the right lung, the right thyroid lobe and bot...

The pyramidal lobe is a remnant of the thyroglossal duct and is considered a normal component of the thyroid gland. The pyramidal lobe may be affected by the diseases that affect the rest of the thyroid parenchyma. A practicing endocrine surgeon should keep the anatomical variations of the pyramidal lobe in mind to achieve a completely total thyroidectomy, when indicated. This approach is espec...

Thyroid hemiagenesis is a rare form of thyroid dysgenesis characterized by an absence of half of the thyroid gland. Developmental hemi-thyroid anomalies can result from either an abnormal descent or an agenesis of one lobe of the thyroid gland. We report a case of a 40-year-old woman with history of a longstanding gradually progressive thyroid swelling without any complication. An ultrasonograp...

We report two cases of thyroid lymphoma. First was of a 54-year-old lady who presented with a 10 year history of goiter. Examination revealed an enlarged thyroid gland extending sub-sternally, with no palpable lymph nodes. She had been on thyroxine for 4 months, due to a high TSH with positive antibodies. Fine needle aspiration cytology of thyroid showed Hashimoto thyroiditis (HT). A total thyr...

Fig. 1: Right-sided thyroid nodule. Clinically, the nodule arose from the right lobe of the thyroid gland, approximately 5 cm at its largest diameter, extending across the midline inferiorly. It was smooth and firm with no apparent retrosternal extension. There was no palpable cervical lymphadenopathy. Fig. 2: Ultrasonographic features of nodule in the right lobe of the thyroid gland. The thyro...