Clinical presentation. A 59-year-old woman was referred for aspiration cytology of a nodular goiter. A multinodular goiter was described on ultrasound. The patient has been treated for hypothyroidism for more than 15 years.

Palpation: The right lobe was firm and nodular on palpation..

Laboratory tests: TSH 0.84 mIU/L on daily 50 microgram levothyroxine.

Ultrasound. The thyroid was moderately hypoechogenic and presented numerous, confluencing discrete lesions. Theoretically we cannot exclude the possibility that one or several lesions of a pseudonodular form of Hashimoto's thyroiditis would be a nodule in pathological sense. Nevertheless, the lesions in this case are probably not true nodules.

Aspiration cytology from the hypoechogenic lesion in the lower part of the right lobe resulted in benign, colloid goiter.