Answer of December 2002

 

Clinical History:


M/71. Sudden onset of low back pain.



                Figure 1. Non-contrast CT


                        Figure 1. Contrast CT

 

Diagnosis:


Acute Diverticulitis involving Descending Colon. No abscess formation is present


Discussion:


Figure 1: Noncontrast CT Thorax shows dense crescent-shaped rims in ascending and descending thoracic aorta.

Figure 2: Postcontrast CT Thorax shows no significant enhancement in crescent-shaped rims. No intimal flap is demonstrated.