Jpn. J. Vasc. Surg., 12: 489-493, 2003  
 
Fig. 1 Enhanced abdominal CT just before appendectomy
Swelling appendix was noted (white allow). Abdominal aorta was severely calcified and abdominal wall thickness increased.
 
Fig. 2 Enhanced abdominal CT 4 days after appendectomy
No abscess was found, however para-aortic area was ehnanced and inflamation of retroperitoneum was suspected (allow).
 
Fig. 3 Enhanced abdominal CT 11 days after appendectomy
Para-aortic retoperitonal area was enhanced and there was cystic area (allow), which connected to the abdominal aorta and right iliac artery.
 
Fig. 4 Post operative course
After appendectomy, the patient developed spike fever with high CRP and WBC count, which did not response to adequate anti-biotics. After aorta resection, he became afebrile within a few days and CRP and WBC count decreased quickly. The patient discharged from hospital 20 days after aorta resection.