Thyroid nodule shows a benign tumor composed of small follicular formations lined by active follicular cells with a small amount of colloid in the majority of follicles. Separating stroma is delicate and vascular. No evidence of vascular invasion or panmural capsular infiltration.
Rt. solitary thyroid nodule suspected follicular lesion by ultrasound.
Rt. hemithyroidectomy with intact capsule measured 3.5x3x2 cm. Serial sectioning revealed almost replacement by greyish nodule measured 3 cm.
Rt. hemithyroidectomy: