Case History/examination:
A 29-year-old male with no previous medical or surgical history
presented with right hip pain for 1-year duration. Physical examination
showed right anterior hip joint tenderness. Imaging showed an
ill-defined expansile lytic lesion of the right acetabulum centered in
the posterior column and extends to involve the lower margin of the
iliac bone causing complete osseous destruction (Figures 1-3 ).
There is involvement of the acetabular articular surface. The lesion
demonstrated locally aggressive radiological features and was suspicious
of a malignant neoplasm. Whole-body FDG PET/CT scan demonstrated
intensely increased tracer uptake (SUV max 12) at the site of the
acetabular/ iliac lesion highly suggestive of malignancy. Otherwise, no
abnormal uptake to suggest local or distant metastasis (Figures
4 ).