Undifferentiated high grade pleomorphic sarcoma of the thyroid gland is very rare. A 70-year-old woman was referred to our hospital for evaluation of a rapidly growing mass in the right lobe of the thyroid gland. At the first visit, she had no symp-toms. Fine-needle aspiration cytology revealed an atypia of undetermined significance. She revisited our hospital after 17 days. At that time the mass had become more enlarged and she complained of dyspnea. The next day, surgery was performed and the diagnosis was undifferentiated high grade pleomorphic sarcoma of the thyroid. The patient died 119 days after sur-gery.

Hepatocellular carcinoma (HCC) is the fifth most common cancer and the third leading cause of cancer-related deaths worldwide. The radiologic findings of liver abscess, HCC, and metastatic tumor to the liver may be quite similar, and a specific diagnosis cannot be made using procedures such as serum tumor marker assay, computerized tomography, and ultrasonography of the liver. We report on a case of HCC successfully diagnosed and treated by surgery which was misconceived as a liver abscess.

Cases of schwannoma of the gastrointestinal tract are rare; most of these tumors are found in the stomach and the small intestine. Cases of cecal schwannoma are extremely rare. Here, we report on a case of cecal schwannoma confirmed pathologically after laparoscopic resection.