Ultrasound-guided minimally invasive tenosynovial biopsy is a feasible, safe, and well-tolerated technique among patients with different stages of RA.

It lies subcutaneously and is easily palpated and visualised with diagnostic ultrasound ... tendinopathy and tenosynovitis of the ECU will often have a vague and subtle swelling over the dorsoulnar ...

To assess the patient’s wrist pain, plain X-rays and ultrasound were obtained for initial investigation ... pathological thickening and increased fluid within it, typical of tenosynovitis (figure 1).

De Quervain's tenosynovitis is caused by inflammation of tendons that attach to the base of the thumb and continue along the thumb side of the wrist. The two muscles affected are the extensor ...