Unusual presentation of extraosseous metastases on bone scintigraphy.
Osteosarcoma metastases frequently occur in the lungs or the skeleton. Bone scans play an important role in disease staging by identifying other skip areas of skeletal involvement as well as extraosseous metastases. We report a case of aggressive osteosarcoma, with bone metastases and extraosseous areas of involvement in the lungs, distant lymph nodes, and peritoneal and subcutaneous metastasis seen in a preoperative Tc-99m methylene diphosphonate bone scan. These findings were confirmed with histology and correlative cross-sectional imaging.
Department of Nuclear Medicine and PET, Singapore General Hospital, Singapore. fairywren@gmail.com
Wanying
W
Xie
Ajit Kumar
AK
Padhy
Wai Yin
WY
Wong
D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D001842:Bone and Bones / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007717:Knee / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging; D013669:Technetium Tc 99m Medronate; D014057:Tomography, X-Ray Computed; D055815:Young Adult
D013669:Technetium Tc 99m Medronate