Figure 9
From: Sonographic swelling of pronator quadratus muscle in patients with occult bone injury
Sonographic images of a 59-year-old woman with a diagnosis of wrist joint effusion of the right hand. Sonographic images in the longitudinal (upper image) and transverse (lower image) planes were obtained using a 13.5-MHz transducer. Each image shows a side-by-side comparison of the right hand (right image) and left hand (left image). The PQ of the right hand is locally thickened. The PQ shows a convex appearance only in right hand.