Fluid in the biceps tendon sheath

An elderly man complained of pain and restriction of motion (particularly for abduction) of the right glenohumeral joint lasting for a couple of months. Ultrasonography revealed a collection of fluid in the biceps tendon sheath as a sign of rotator cuff and biceps tendon irritation. The probe is first moved from the tendon insertion into distal direction, showing a cross section of the tendon (circle) and the fluid surrounding it....