Massive heterotopic ossification along the distal portion of the psoas muslce (from left lateral aspects of L3 and L4 vertebrae) down to the adjoining iliacus (where its shows fusion with the left iliac bone) and then along the course of the iliopsoas muscle down to its insertion at the femoral lesser trochanter (with trochanteric fusion also).
Irregular heterotropic ossification along the superficial aspects of the visualized portions of the erector spinae muscles.
Milder degrees of heterotropic ossifications at the visualized portion of the left quadratus lumborum muscle.
Subsequent left pelvic tilt is noted.