Reason: muscle tear vs tumor History: mid-forearm pain with curling There is thickening, increased signal intensity, and enhancement of the distal biceps tendon at its insertion on the radius, indicating tendinosis and perhaps mild interstitial tearing. A small amount of fluid is also noted adjacent to the distal biceps tendon. The musculature of the forearm appears normal. The bone marrow signal intensity is normal without findings to suggest stress fracture. We see no mass to indicate tumor.
Insertional tendinosis of the distal biceps tendon possibly with interstitial tearing but no other findings to account for the patient's pain.