Thyroid gland: international case conference.

The cases of five thyroid tumors were presented and discussed at an international case conference held during the 5th Annual Meeting of the Japanese Endocrine Pathology Society. There was significant disagreement among six pathologists who studied the cases. In this article, we present two of the cases, attempt to explain the reason for disagreement in their diagnoses, and propose what should be done to obtain better consensus in diagnosis.