APPENDIX - ACUTE APPENDICITIS
The specimen was obtained from a man aged 57 years, who presented with symptoms and signs of peritonitis. At operation there was pus in the peritoneal cavity. An appendicectomy was performed.
The tip of the appendix has been removed. The remainder of the organ shows acute inflammatory changes, including swelling, congestion and patchy haemorrhage in the wall, and a pale fibrinous exudate on the serosal surface. There are several small subserosal haemorrhages. On the cut surface (see back of specimen) there are tiny pale abscesses in the wall. This is an example of acute appendicitis complicated by perforation and peritonitis.