The patient is a 66-year-old female with history of non-Hodgkin's lymphoma involving the cervical lymph nodes and the bone marrow, status post chemotherapy. The patient was found to have bone involvement and underwent radiation therapy of the thoracic spine.
There is markedly increased tracer uptake within the right anterior iliac wing extending from the anterior/superior iliac spine to rim of the acetabular roof. There is also increased tracer uptake adjacent to the right SI joint. There is subtle mild increased tracer uptake within the proximal left femur at the region of the intertrochanteric line. There is increased tracer uptake within the mandible that is fairly symmetric in appearance with a focal area of photopenia at the apex of the mandible. The axial and proximal appendicular skeleton demonstrates mild but diffuse increased tracer uptake. Incidentally, there is splaying of the left lower ribs posteriorly.
2. Mild and diffuse increased tracer uptake within the proximal appendicular and axial skeleton as well as in the rami of the mandible, likely representing a reactive bone marrow process secondary to chemotherapy.