[Mucocele of the appendix: Presentation of 31 cases]

Arturo García Lozano1, Antonio Vázquez Tarrago, Carmen Castro García

  • 1Servicio de Cirugía General, Hospital Dr. Peset, Valencia, España.

Cirugia Espanola
|December 8, 2009
PubMed
Abstract

Insights

Mucocele of the appendix, a rare condition causing appendix dilation, can be benign or malignant. This study reviewed 31 cases, highlighting appendiceal mucocele diagnosis and management.

Area of Science:

  • Gastroenterology
  • Surgical Pathology
  • Oncology

Context:

  • Mucocele of the appendix is a rare condition, occurring in 0.2-0.3% of appendectomies.
  • It involves appendix dilation due to mucus, potentially stemming from benign or malignant processes like cystadenoma or adenocarcinoma.
  • Clinical presentation often mimics acute appendicitis, with right iliac fossa pain being the most frequent symptom.

Purpose:

  • To analyze a series of 31 appendiceal mucocele cases treated over 18 years.
  • To describe the clinical presentation, histological findings, and surgical management of appendiceal mucoceles.
  • To emphasize the importance of follow-up due to potential synchronous or metachronous tumors.

Summary:

  • A review of 31 cases (17 female, mean age 62) revealed appendiceal mucocele, with 45% presenting with acute right iliac fossa pain.
  • Histology confirmed benign etiology in 21 cases. Surgical interventions included appendectomy, laparoscopic procedures, cecal resection, and right ileocolectomy.
  • Malignancy was identified in 9 cases, including one cystadenocarcinoma, underscoring the need for thorough evaluation and management.

Impact:

  • Provides insights into the clinical and pathological spectrum of appendiceal mucocele.
  • Highlights surgical strategies for managing this uncommon condition.
  • Stresses the critical need for long-term surveillance for associated neoplastic processes.

Related Concept Videos

Appendicitis01:19

Appendicitis

Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...
Appendicitis-I: Introduction01:22

Appendicitis-I: Introduction

The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
Appendicitis-II: Diagnostic Studies and Management01:29

Appendicitis-II: Diagnostic Studies and Management

Diagnosing and managing appendicitis requires a structured and comprehensive approach that spans from initial assessment to postoperative care. Here is an overview of the process:
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
Diverticular Disease of the Colon01:27

Diverticular Disease of the Colon

Diverticular disease involves the formation of diverticula—small sac-like outpouchings of the colonic wall—and their complications. It most commonly affects the sigmoid colon due to higher intraluminal pressure and structural vulnerability. It results from structural weakness and increased pressure in the colon, producing pseudodiverticula that may remain silent or progress to inflammation and serious complications.Structure of DiverticulaIn diverticulosis, these outpouchings are...
Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...