Certain radioisotopes can also be administered to treat certain cancers such as thyroid cancer.

We suggest that thyroid drugs should be given concurrently with radioactive iodine to treat early hyperthyroidism. The problems concerning apathetic thyroid crisis are also discussed.

This paper described a typical case of subacute thyroiditis together with 4 other similar cases of our hospital, and also reviewed 7 other cases that had been reported in some published magazines.