FIGURE 2.  SPECT/CT for suspected vascular graft infection on WBC. A 54-y-old man, 2 y after left femoropopliteal bypass and 1 mo after right femoral-popliteal bypass, was referred for WBC for suspected vascular graft infection in presence of infected surgical wound in right groin. (A) Planar anterior WBC image shows focal uptake in right groin. Precise anatomic location of this lesion with regard to potential involvement of adjacent vascular graft could not be determined. (B) Transaxial WBC SPECT/CT image (left) shows that suggestive right inguinal uptake seen on WBC (center, arrowhead) is localized to subcutaneous fat blurring seen on corresponding low-dose CT image in region of surgical scar (right, arrowhead), with no involvement of adjacent vascular graft (right, arrow). Signs and symptoms of surgical wound infection resolved rapidly with systemic antibiotic and local treatment. Patient had no further evidence of wound or graft infection during follow-up of 10 mo.