Fig. 4
From: Spectrum of MRI features of ganglion and synovial cysts
a, b. Ganglion cyst in the volar aspect of the wrist in a 55-year-old woman presenting with pain during volar flexion and paresthesia. Axial FS PD-weighted MRI (a) shows a smooth, multiloculated, homogeneously hyperintense lesion located deep and medial to the radial artery (arrow) and lateral to the flexor pollicis longus (dashed arrow) and the flexor carpi radialis (arrowhead) tendons. A tiny amount of fluid within the abductor pollicis longus and extensor pollicis brevis tendinous sheath (asterisk) is also present. The site of origin of the cyst is more evident on the sagittal T2-weighted MRI (b), which seems to originate more distally in the radioscaphoid interval (arrow). Rd, radius; Sc, scaphoid. Case courtesy of Dr. Carlos Teiga. Radiology Department, Centro Hospitalar de Lisboa Central. Lisbon, Portugal