Thyroid adenoma
Thyroid adenoma
Updated: 01/13/2021
© Jun Wang, MD, PhD
General features
- Benign tumor with follicular differentiation
- Usually 20-50 years, more common in women
- May be functional: toxic adenomas, causing hyperthyroidism
- Resection to rule out malignancy
Clinical features
- Neck mass
Radiologic features
- Cold or warm nodules
Pathological features
- Usually solitary nodule
- Well-circumscribed mass
- Fine capsule and a rim of slightly darker normal thyroid parenchyma
- Closely packed follicles, trabeculae or solid sheets
- Cuboidal to low columnar cells, pale staining with round small nuclei
- If more than 75% hurthle cell changes, called Hurthle cell adenoma
- NO evidence of capsular and vascular invasion
- NO nuclear features of papillary thyroid carcinoma
Treatment
- Usually do not need treatment
- Beta block if thyrotoxicosis
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