Calcific tendinitis of the rectus femoris

Case contributed by Mohamed Saber
Diagnosis almost certain

Presentation

Left hip pain and limited range of movement 1 week ago. No history of trauma.

Patient Data

Age: 70 years
Gender: Female

Plain X-ray study shows calcific bodies related to the left acetabulum and anterior inferior iliac spine.

Thickened proximal tendon of the left rectus femoris muscle with intrasubstance signal alteration and surrounding edema. These changes are mainly involving the direct head tendon and to a lesser degree the indirect head and proximal conjoined tendons (better seen on the sagittal plane). In addition, a calcific body (1.5x2cm) is seen closely related to the tendon.    

Case Discussion

Here is a case with plain X-ray and MR findings suggestive of calcific tendinitis of the rectus femoris muscle.

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