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Journal of Nuclear Medicine Vol. 43 No. 4 484-486
© 2002 by Society of Nuclear Medicine

Clinical Investigations

Clinical Spectrum of Asymptomatic Femoral Neck Abnormal Uptake on Bone Scintigraphy

Vladimir Sopov, MD;1,2, Dror Fuchs, MD;2,3, Elisha Bar-Meir, MD;2,4, Miguel Gorenberg, MD;2,5 and David Groshar, MD1,2

1 Department of Nuclear Medicine, Bnai Zion Medical Center, Haifa, Israel
2 Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
3 Department of Orthopaedics, Bnai Zion Medical Center, Haifa, Israel
4 Department of Radiology, Bnai Zion Medical Center, Haifa, Israel
5 Department of Nuclear Medicine, Rebecca Sieff Governmental Hospital, Safed, Israel

The purpose of this study was to assess the clinical spectrum of asymptomatic abnormal focal uptake of 99mTc-methylene diphosphonate (MDP) in the femoral neck. Methods: Fifteen consecutive patients with asymptomatic abnormal focal uptake of 99mTc-MDP in the femoral neck were evaluated. Two patients had bilateral abnormal focal uptake. The patient’s history, clinical findings, and plain hip radiograph were obtained in all cases. Scintigraphic, radiographic and clinical findings were correlated. Results: Eight of 17 (47%) femoral necks showed a definite herniation pit on radiography, 6 patients (35%) had normal radiographic findings, 1 patient had a bone island, 1 patient had a bone island and a herniation pit, and 1 patient had a subtle lesion suggestive of a herniation pit on radiography. All patients remained asymptomatic for at least a 10-mo follow-up period. Conclusion: A herniation pit is the most common finding among asymptomatic abnormal femoral neck focal uptake. This condition should be distinguished from a wide variety of disorders associated with increased focal abnormal uptake of 99mTc-MDP in the femoral neck.

Key Words: herniation pit • femoral neck • bone scintigraphy






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Copyright © 2002 by the Society of Nuclear Medicine.