Fig. 21

Inflammatory pseudotumour in a 50-year-old female presenting with a painless mobile lump over the medial aspect of the palm for a few months. (a) Ultrasound shows a solid heterogeneous lesion in the palm over the fourth web space close to the flexor tendon of the ring finger (arrow). (b) T1w sequence shows a lobulated subcutaneous nodule of intermediate signal (arrow) close to but separate from the flexor tendon of ring finger (arrowhead). (d) The lesion is only minimally hyperintense on T2w-FS sequence. No intravenous contrast was given because of renal impairment