Scintigraphic Findings in Adamantinoma

Received 8/9/2000; accepted 8/30/2000. For correspondence or reprints contact: Shyh-Jen Wang, M.D., Department of Nuclear Medicine, Taichung Veterans General Hospital, 160, Sec. 3, Taichung Harbor Road, Taichung 407, Taiwan, R.O.C. Tel: (886)4-23741349, Fax: (886)4-23741348, E-mail: [email protected] Adamantinoma is a rare low-grade malignant lesion that shows both epithelial and mesenchymal differentiation. The scintigraphic findings of Tc-MDP whole body bone scan and Tc-MIBI imaging are presented. In the bone scan, there is markedly increased radioactivity in the acetabulum of the right hip. In the MIBI study, there is increased radioactivity in the corresponding area. The scintigraphic findings and the clinical history suggested the possibility of thyroid carcinoma with bony metastases. The diagnosis of adamantinoma was revealed by histopathology.