Fig. 9
From: Pelvic heterotopic ossification: when CT comes to the aid of MR imaging
A 61-year-old male paraplegic patient following spinal injury. a CT axial scan reveals an elongated ossifying lesion within the right pectineus muscle. b On STIR images the lesion (small arrow) is essentially isointense to muscle, while on (d) T1-weighted images it shows a considerable low signal intensity). c No contrast-enhancement is noticeable at this site. On the left ischiatic region, a deep infected soft tissue ulcer with bone involvement is shown (large arrow)