Answer of July 2002

Clinical History:

M/25. Diffuse abdominal pain and fever.

                                        Figure 1

                                        Figure 2

                                        Figure 3

Differential Diagnosis:

Perforated appendicitis with appendicolith.

Discussion:

Figure 1: Noncontrast CT abdomen : A small calcified focus is seen in the lower abdomen. Sigmoid colon is distended with fluid.

Figure 2 and Figure 3: Contrast CT abdomen : There is a collection in the right iliac region anterior to iliac vessels. Peritoneal enhancement is noted at the flank . Extensive stranding is present in the mesentry of sigmoid colon.