Nucl Med Mol Imaging.
2018 Apr;52(2):162-165. 10.1007/s13139-017-0489-2.
Focal Increased Tc-99m MDP Uptake in the Nutrient Foramen of the Femoral Diaphysis on Bone SPECT/CT
- Affiliations
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- 1Department of Radiology, Soonchunhyang University Hospital, Seoul, Republic of Korea.
- 2Department of Nuclear Medicine, Soonchunhyang University Hospital, Seoul, Republic of Korea. soobin.park@schmc.ac.kr
- KMID: 2414805
- DOI: http://doi.org/10.1007/s13139-017-0489-2
Abstract
- We present images of an 83-year-old female with a history of osteoporosis and bilateral total knee replacement arthroplasty, referred for bone scintigraphy and single-photon emission computed tomography (SPECT)/computed tomography (CT), owing to left knee pain. No trauma to, or intense exercise of, the kneewas reported. The bone scan and SPECT/CT revealed a focally increased Tc-99m methylene diphosphonate (MDP) uptake in the medial cortex of the left femoral diaphysis with matched linear radiolucency on CT images. This was misinterpreted as atypical femoral stress fracture; however, focal stress reaction injury to the nutrient foramen was confirmed on contrast-enhanced magnetic resonance imaging.
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