Clinical presentation: A a 58-year-old man was referred for an evaluation of a newly discovered nodule. Ha was operated on for urinary bladder cancer 6 months earlier. On routine examination suspicious foci in the liver and a thyroid nodule were discovered.

Palpation: a very hard, fixed mass in the right thyroid and enlarged lymph node in the right side of the neck.

Functional state: euthyroidism (TSH-level 1.12 mIU/L).

Ultrasonography. The right lobe was enlarged and consisted of multiple hypoechogenic nodules. Multiple enlarged lymph nodes were detected on the right side of the neck.

Cytological picture. There was no colloid in the background. Hyperchromatic epithelial columnar cells were found with clear cytoplasm. They were in irregular cell groups with loss of polarity and nuclear crowding.

Cytological diagnosis: a pattern corresponding to metastasis of the urinary bladder cancer.