Appendicular lumen is distended and appendicular epithelium is extensively ulcerated and reduced in few foci to a flat layer of simple columnar mucigenic epithelium. Foci of ulceration are seen related to dense non-specific inflammation rich in neutrophils, lymphocytes, plasma cells with histiocytes. This infiltrate extends to involve the whole thickness of the thick and fibrotic wall and into periappendiceal fat with perforation. No evidence of malignancy.
Appendicular mucocele.
The specimen consists of an appendix measuring 5.5 cm with attached small fat measuring 2 cm. It shows a cyst measuring 3 cm that is filled with brownish material.
Appendicectomy: