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There is a complete tear of the quadriceps tendon, approximately 4.2 cm above its insertion into the patella. The defect within the tendon extends over a craniocaudal distance of approximately 2.3 cm and is associated with a haematoma. Two small calcific densities, the largest measuring approximately 7 mm lie within the tendon defect. These are better seen on the plain film and although they may represent a avulsed fragments, the tendon at its insertion point is intact, and the densities are corticated on the plain film with a chronic appearance, possibly related to an old injury.