Laparotomy and histological evaluation were of an appendiceal mucocoele.

Some relevant aspects about this condition:

• it represents an abnormal accumulation of mucus within the appendix
• it is a result of a chronic appendiceal obstruction that may be caused by either benign or malignant lesions
• main differentials to consider:
  • acute appendicitis complicated by an abscess
    • inflammatory changes are more exuberant
    • thick and irregular abscess wall
  • appendiceal tumors: carcinomas or lymphoma
  • cecal neoplasms