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Spontaneous rupture of the distal iliopsoas tendon: clinical and imaging findings, with anatomic correlations.

Lecouvet FE, Demondion X, Leemrijse T, Vande Berg BC, Devogelaer JP, Malghem J

Department of Radiology and Medical Imaging, Saint Luc University Hospital, Université Catholique de Louvain, Hippocrate Avenue 10/2942, 1200, Brussels, Belgium. lecouvet@rdgn.ucl.ac.be

We report the clinical and imaging findings in two elderly female patients with spontaneous rupture of the distal iliopsoas tendon from the lesser trochanter of the femur. We emphasize the key contribution of magnetic resonance (MR) imaging to this diagnosis and provide an anatomic correlation. Spontaneous rupture of the distal iliopsoas tendon should be kept in mind in the differential diagnosis of acute groin pain in the elderly. MR imaging enables positive diagnosis, by showing mass effect on the anterior aspect of the hip joint, proximal muscle thickening, and abnormal signal intensity, and by demonstrating interruption of the psoas tendon, whereas the distal insertion of the lateral portion of the iliacus muscle remains muscular and is preserved.

Published 17 October 2005 in Eur Radiol, 15(11): 2341-6.
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