Osteoblastic osteosarcoma of the mandible: findings on Tc-99m HMDP bone and Ga-67 citrate scintigraphy |
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Authors: | Takahashi Tomoko Oguchi Manabu Kuga Gencho Higashi Kotaro Tonami Hisao Yamamoto Itaru Segami Natsuki Nojima Takayuki |
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Institution: | Department of Radiology, Kanazawa Medical University, Ishikawa, Japan. tomoko-t@kanazawa-med.ac.jp |
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Abstract: | A 25-year-old woman presented with a disturbance in the opening of her mouth 5 months before admission. On admission, painful swelling of the right preauricular region was revealed. Computed tomography (CT) demonstrated a soft tissue density mass around the right condylar process of the mandible. Tc-99m hydroxymethylene diphosphonate (HMDP) bone scintigraphy and Ga-67 citrate scintigraphy showed avid uptake in the mass. The tumor was histologically identified as an osteoblastic osteosarcoma of the right mandible. There are few reports of Ga-67 citrate scintigraphy findings of osteoblastic osteosarcoma of the mandible. The accumulation patterns on Tc-99m HMDP bone scintigraphy and Ga-67 citrate scintigraphy are possibly characteristic of osteoblastic osteosarcoma of the mandible. |
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