Thyroid follicular adenoma
- Commonest cause of solitary thyroid nodule
- Solid mass with fibrous capsule - normally non functioning
- Wide age range but F > M
Thyroid follicular carcinoma
- Well differentiated malignant tumour with good prognosis
- 20% of carcinomas
- 90% solitary nodule 10% with mets
Papillary thyroid carcinoma
- Well differentiated carcinoma with excellent prognosis. Younger mostly female
- Most common carcinoma
- Invades lymphatics
- Annie eye cuclei under microscopy