solitary thyroid nodule


solitary thyroid nodule

A discrete enlargement of an otherwise normal thyroid gland Epidemiology ♀:♂ 4:1; most are incidental findings during autopsy or surgical exploration for other reasons DiffDx Colloid–adenomatous nodule–42-77% of STNs, follicular adenoma–15-40%, CA–8-17% Diagnosis FNA biopsy, radionuclide scanning–131I, 99mTc, ultrasonography Management Malignant and indeterminant lesions are treated by surgery