Vol. 98  No. 12  December 2005

Changes in the Size of Malignant Thyroid 
      Nodules Evaluated by Ultrasonography

Tsuyoshi Kojima, Kazuhiko Shoji, Satoshi Ikegami, 
Shinji Suzuki, Yo Kishimoto and Atsuhito Takahashi
(Tenri Hospital)

      Most malignant thyroid nodules are surgically treated. This report reviews changes in size of malignant thyroid nodules; none of them received any medical and surgical treatment. Three hundred and three nodules were diagnosed as malignant using fine needle aspiration biopsy (FNAB) and ultrasonography from 1997 to 2003. In 17 patients (19 nodules), they were observed for more than 6 months. We examined the transition of their major axis by ultrasonography. Large nodules (>10 mm) and nodules in younger patients (age<50) tend to increase in size. As compared with benign nodules, malignant nodules tend to increase in large nodules (>10 mm).

Key words : thyroid nodule, ultrasonography, fine needle aspiration biopsy (FNAB)


第98巻12号 目次   Vol.98No.12contents