From the *Department of Nuclear Medicine, Kuwait Cancer Control Center, Khaitan, Kuwait; and †Jack Brignall PET/CT Centre, Castle Hill Hospital, Cottingham, UK.
Clin Nucl Med. 2017 Apr;42(4):e199-e201. doi: 10.1097/RLU.0000000000001547.
Fabella is a sesamoid bone, located within the tendon of the lateral head of the gastrocnemius muscle. It may be associated with posterolateral knee pain because of repetitive friction over the posterolateral femoral condyle. We report a case of a 64-year-old woman presenting with right posterolateral knee pain. F-NaF PET-CT demonstrated increased uptake posterior to the right knee joint localizing to a fabella. Standard examination and radiographic imaging excluded other causes for posterolateral knee pain, and the increased activity was considered to be secondary to fabella syndrome. NaF PET-CT can provide useful information in the evaluation of posterolateral knee pain.
籽骨位于腓肠肌外侧头的肌腱内。由于反复摩擦股骨外髁后外侧，它可能与膝关节后外侧疼痛有关。我们报告了一例 64 岁女性右膝关节后外侧疼痛的病例。F-NaF PET-CT 显示右膝关节后部摄取增加，定位于籽骨。标准检查和影像学检查排除了膝关节后外侧疼痛的其他原因，认为活性增加是由于籽骨综合征引起的。NaF PET-CT 可提供有用的信息，评估膝关节后外侧疼痛。
