Appendicular lumen is full of neutrophils that extend into wall in between the mucosal associated lymphoid tissue together with lymphocytes and plasma cells. Such infiltrate extends to periappendicular fat, amounting at abscess formation. Impacted fecolith is noted. No evidence of specific granulomas. No evidence of appendicular tumors.
Perforated appendix.
Received is a 6.8 × 1 cm vermiform appendix with 5 × 2.2 cm of attached mesoappendiceal fat. The serosa is ulcerated and grey. Sectioning revealed a 0.3 cm thick wall and a 2.5 cm cyst containing brown material.