What is Secondary Hyperthyroidism?

Secondary Hyperthyroidism
Papillary thyroid cancer presenting with hyperthyroidism in 12-year-old female.Longitudinal ultrasonography scan (A) shows oval hyperechoic nodule with numerous microcalcifications (arrows) and multiple metastatic lymphadenopathy in left thyroid at levels II-IV (B). Microcalcifications and cystic changes are seen. C. Tc-99m scintigraphy shows increased uptake (thyroid uptake 7.2%; normal range, 2-4%), diffuse enlargement of both thyroid gland lobes, and increased uptake in thyroid nodule (short arrows) and in left lateral neck due to metastasis to lymph nodes (long arrows). Surgery confirmed papillary thyroid cancer with metastatic lymphadenopathy and underlying lymphocytic thyroiditis.Ultrasonography of various thyroid diseases in children and adolescents: a pictorial essay. Hong HS, Lee EH, Jeong SH, Park J, Lee H - Korean journal of radiology (2015). Not Altered. CC.

Secondary Hyperthyroidism occurs when the thyroid gland is stimulated by excessive thyroid-stimulating hormone.

What is the Pathology of Secondary Hyperthyroidism? 

The pathology of secondary hyperthyroidism typically involves high TSH, and/or abnormal.

How does Secondary Hyperthyroidism Present? 

Secondary hyperthyroidism typically presents with nervousness, weight loss, sweating, palpitations, tremor, diarrhea, heat intolerance, fatigue, loss of libido, and oligomenorrhea.

How is Secondary Hyperthyroidism Diagnosed? 

Secondary hyperthyroidism is typically diagnosed by a blood test to measure TSH level.

How is Secondary Hyperthyroidism Treated? 

Secondary hyperthyroidism is typically treated with antithyroid medications or thyroid surgery.

What is the Prognosis of Secondary Hyperthyroidism? 

The prognosis of secondary hyperthyroidism is good with symptoms starting to resolve within several weeks.