Fig. 4From: Ultrasound-guided steroid tendon sheath injections in juvenile idiopathic arthritis: a 10-year single-center retrospective study6 years 8 months old male referred for injection of biceps brachii tendon bilaterally. a Ultrasound showed echogenic peritendinous fluid and thickening of the sheath around the tendon (T). b The fluid was aspirated with a 20-gauge angiocath™ (arrow) and sent for cultureBack to article page