Figure 10.

A patient with disseminated follicular lymphoma presented with left thigh swelling. (a) Radiograph of the left femur showing soft tissue swelling in the left thigh (white arrow) with sclerosis and bowing of the left femoral shaft (black arrowhead). (b) Ultrasonograph of the left thigh showing a large heterogeneous swelling of the left quadriceps muscle. F indicates femur. (c) T2-weighted fat-saturated image showing swelling with diffusely raised signal intensity of the quadriceps muscle (white arrow). Marrow involvement of the underlying femur (white arrowhead) also noted. (d) Prechemotherapy PET/CT with FDG showing FDG avidity of the tumour mass. (e, f) Interval PET/CT after chemotherapy showing progressive decrease in size and FDG avidity of the tumour compatible with treatment response (white arrow).