Fig. 7
From: Pseudotumoural soft tissue lesions of the hand and wrist: a pictorial review
Myositis ossificans of the thenar in a 7-year-old boy presenting with pain and swelling at the thumb (active phase). a Plain radiograph. Note calcifications (arrow) in the thenar. b Axial SE T2-WI shows an ill-defined intramuscular mass that is hyperintense with central areas of low signal. Additionally, there is an intralesional area of heterogeneous low signal, corresponding to the calcifications on plain films (arrow)