CT diagnosis of thyroid nodules diseases

Objective To improve CT diagnosis of thyroid nodulous lesions by evaluating CT findings of 39 cases with thyroid nodulous diseases retrospectively. Methods CT findings of thyroid nodulous diseases confirmed surgically and pathologically in 39 cases were reviewed retrospectively in the form of benign and malignant groups, and cystic, cysti-solid and solid types. Take 100 plain scans and 100 contrast enhanced scans of normal thyroid glands in the study as control. Observe and calculate the max amplification of enhancement, the density homogenization and shape of the benign and malignant lesions with their pathologic findings. Results The max enhancement amplification of malignant nodules or masses after contrast enhancement were considerably lower than that of control group and benign lesions statistic significantly (P0.05). But the difference of such amplification between the benign and control group was no statistic significant. The enhancement was inclined to be homogeneous with malignant lesions and heterogeneous with benign lesions comparatively. Conclusion CT study, especially that with introvenous contrast enhancement are of some help in differentiate diagnosis of benign from malignant thyroid lesions.