1. Results The cavernous hemangioma of liver in arterial phase displayed the nodosity enhancement.

2. Results The appearances of breast cancer in CT were irregular mass or nodosity with lobular and spiculate boundary, distorted glands and higher density than normal glands.

3. Results Among the 53 patients with secondary hyperparathyroidism , there were 39 cases of parathyroidal hyperplasia, 31 cases of nodosity thyroncus, 32 cases of lymphadenectasis.

4. On MRI, the lesions displayed long or iso-T1 and iso-or short T2 signal, which were enhanced with mass or nodosity after contrast adminstration.

5. Results: The patients with vertebral myeloma, the adnexal bones were diffusely invaded, which were patch and nodosity. The form of adnexal bone was normal or rare mass.