Focal Increased Tc-99m MDP Uptake in the Nutrient Foramen of the Femoral Diaphysis on Bone SPECT/CT
10.1007/s13139-017-0489-2
- Author:
Hwajin CHA
1
;
Soo Bin PARK
;
Hyun Joo KIM
Author Information
1. Department of Radiology, Soonchunhyang University Hospital, Seoul, Republic of Korea.
- Publication Type:Case Report
- From:Korean Journal of Nuclear Medicine
2018;52(2):162-165
- CountryRepublic of Korea
- Language:English
-
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.
