Okuyama T, Suzuki H, Umehara I, Kuwabara Y, Suzuki S, Takagi M
Clin Nucl Med. 1985 Nov;10(11):786-90. doi: 10.1097/00003072-198511000-00008.
Aneurysmal bone cyst is rarely found in the mandible, and roentgenographic diagnosis of this condition is not easily made. In this report, the diagnostic value of bone scintigraphy and radionuclide angiography and CT imaging in two cases of aneurysmal bone cyst of the mandible are discussed. Bone scintigraphy with Tc-99m MDP demonstrated ring-like or doughnut-pattern accumulation of radioactivity, which corresponded to the expansile character of the bony lesion. The accumulation of radioactivity was intensive in the peripheral region despite the fact that the lesion was benign. Furthermore, the central rarefaction showed that the lesion was cystic. Radionuclide angiography with Tc-99m HSA, including blood pool scan, did not detect radioactive concentration. Thus bone scintigraphy and radionuclide angiography were found to be essential in the differential diagnosis of aneurysmal bone cyst from other forms of tumor, especially hypervascularized tumor and central hemangioma of the mandible.
动脉瘤样骨囊肿很少见于下颌骨，且这种疾病的X线诊断并不容易。在本报告中，讨论了骨闪烁显像、放射性核素血管造影和CT成像对两例下颌骨动脉瘤样骨囊肿的诊断价值。用锝-99m亚甲基二膦酸盐进行的骨闪烁显像显示放射性呈环状或甜甜圈样聚集，这与骨病变的膨胀性特征相符。尽管病变为良性，但放射性在周边区域聚集强烈。此外，中央稀疏表明病变为囊性。用锝-99m人血清白蛋白进行的放射性核素血管造影，包括血池扫描，未检测到放射性浓聚。因此，发现骨闪烁显像和放射性核素血管造影对于鉴别动脉瘤样骨囊肿与其他形式的肿瘤，尤其是血管过度增生性肿瘤和下颌骨中央血管瘤至关重要。
