… cellulitis instead gives a diffuse oedematous picture without a demarcated fluid collection. Ultrasound also shows the depth of the cavity and its distance to vessels…

…subacromial and trochanteric injection; 25–27 G, 25 mm for the carpal tunnel, de Quervain's and trigger finger. Syringes of 3, 5 and 10…

…choose a new site if in doubt Cellulitis over the insertion site Change the puncture site Preparation and equipment Ultrasound with a curved array probe…