Incidental detection of low-grade appendiceal mucinous neoplasm

Abstract

Low grade Appendiceal Mucinous Neoplasm (LAMN) is a rare malignant entity, which is most commonly discovered incidentally. There is a cystic dilatation of appendix, due to copious amounts of gelatinous material accumulation in the appendiceal lumen. The larger the mass, the higher is the risk of malignancy. It can lead to multiple complications such as intussusception, volvulus, small bowel obstruction, and rupture, which in turn can cause an alarming condition of pseudomyxoma peritonei. The patient may or may not present with symptoms of appendicitis, but appendectomy remains the standard approach, both for treatment and diagnosis. It is commonly found in middle-aged adults, with female predominance. We received one such appendicitis specimen, which was incidentally detected as LAMN.

Keywords

• appendix
• low-grade appendiceal mucinous neoplasm
• pseudomyxoma peritonei