Mucocèle appendiculaire: à propos de dix cas

Abstract

La mucocèle appendiculaire ou tumeur mucosécré-tante appendiculaire est une affection rare, définie comme une dilatation kystique de la lumière de l'appendice à la suite d'une accumulation intraluminale de sécrétions mucineuses, translucides, gélatineuses, pouvant toucher soit la totalité de l'organe, soit un segment le plus souvent distal. Sa pathogé-nie est discutée, le diagnostic est presque toujours peropéra-toire, l'imagerie joue maintenant un rôle important dans le diagnostic. De la nature histologique dépend la thérapeutique. Celle-ci va de la simple appendicectomie dans les formes bénignes, à l'hémicolectomie droite pour cancer dans les mucocèles malignes. Nous rapportons dix cas colligés dans le service. À travers la revue de la littérature, nous essayerons de dégager les différents moyens diagnostiques et les aspects anatomopathologiques dont découle la thérapeutique. Mots clés Mucocèle appendiculaire · Diagnostic · Anatomie pathologique · TraitementAbstract The appendicular mucocele or mucosecretant tumor is a rare affection defined as a cystic dilatation of the lumen of the appendix following the intraluminal accumulation of mucinous, translucent, gelatinous secretion which may reach either the entire organ or a segment more often distal. Its pathogeny is under discussion, and the diagnosis is more often preoperative. The therapy depends on the histological nature of the mucocele, which goes from a simple appendicectomy when the mucocele is benign to a right hemicolectomy in the case of a malignant mucocele. We report ten cases from the service, and through the medical record notes, we try to identify the different ways of diagnosis and the anatomopathologic aspects which arise from the therapy.

Retroperitoneal mucocele of the appendix: diagnosis and management

“…The first one, presented by WOODRUFF and MAC DONALD in 1940, argue that the obstruction of the appendiceal base would explain the mucus accumulation produced by healthy glands in a closed pocket. 3,4 This obstruction can be secondary to inflammatory or post-infectious stenosis (tuberculosis), a benign tumor (cystadenoma) or a malignant tumor (cystadenocarcinoma). 5,6,7 The second one is a neuro-endocrine theory: hypersecretion and extreme distension of the muscular tunic would be the consequence of increased excitation of secretary nerve cells.…”

“…Among all performed appendicectomy, its incidence is between 0.2 % and 0.7 %. [1][2][3][4] We define it as a dilatation of the appendix caused by an inflammatory or tumoral obstruction, with intraluminal accumulation of mucoid material. The pre-operative diagnosis on imaging is essential.…”

Appendicular Mucocele Simulating Ovarian Tumor Case and Review of the Literature

“…In our case, the imaging magnetic resonance revealed the presence of carcinomatosis. The differential diagnosis will be done with a cyst or ovarian neoplasia; a cecal diverticulum, appendiceal abscesses, inflammatory bowel disease, mesenteric cyst or omental well as a hematoma or mesenteric tumor (2) . The case of our patient was diagnosed as an ovarian tumor with ultrasound and MRI.…”

“…It was described for the first time in 1842 by Rokitansky who then decided to call it "hydrops appendicular" since it has attracted the interest of many authors (2) . We report a case of the appendicular mucinous ovarian tumor and peritoneal extension, treated at the National Institute of Oncology in Rabat.…”

Mucocèle appendiculaire : à propos d’un cas observé à Lubumbashi

“…La distension mucineuse de la lumière appendiculaire peut être d'origine tumorale ou non, bénigne ou maligne [1, 8]. …”