Mucocele of the appendix is a term used to describe a dilated, mucin-filled appendix. It is most commonly the result of epithelial proliferation, but can be caused. Appendiceal mucoceles occur when there is an abnormal accumulation of mucin causing abnormal distention of the vermiform appendix due to various. Appendiceal Mucocele: A Diagnostic Dilemma in Differentiating Malignant From Benign Lesions With CT. Hao Wang1, Yong-Qi Chen2, Ran Wei1, Qing-Bing.

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The prognosis of patients with pseudomyxoma peritonei was very poor, with limited life expectancy and no chances of healing. Some specific symptoms were significantly correlated with malignancy Table 4. Extraappendiceal mucin with epithelial cells characterizes the mucinous neoplasm with a high rate of recurrence. The preoperative diagnosis of AM helps to avoid accidental iatrogenic perforation during surgery. If treated improperly, the mucocele may progress, epithelial cells may escape into the peritoneal cavity, and pseudoyxoma peritonei may develop, which has a high mortality.

Intricacies in the surgical management of appendiceal mucinous cystadenoma: An appendicolith was also present at the base of the appendix Figure 1b. Contraindication to laparoscopic appendectomy. Dr Stocchi and his colleagues have conducted a retrospective chart review to evaluate the clinical behavior of a fairly uncommon lesion, primary appendiceal mucocele.

Pathological data included histologic findings, based on the classification mentioned herein; size of the lesions, considered as the longest diameter at the time of histologic examination; and presence and location of synchronous tumor.

Guidelines for colonoscopy surveillance after polipectomy: Appendicitis at the millennium. Second, there might be a referral bias in favor of tertiary referral centers for symptomatic patients with abdominal mass and weight loss, who are more likely to harbor appendiceal cystadenocarcinoma.


The lesion had calcified walls.

Appendicular mucocoele Appendicular mucocele Appendicocoele Appendicocele Appendiceal mucocele Mucocoele of appendix Mucocele of appendix Mucocele of the appendix Appendiceal mucocoeles Appendiceal mucoceles Mucocele of the appendix. Int J Surg Case Rep. Acta Obstet Gynecol Scand.

A computed tomography CT scan of the abdomen with oral and intravenous contrast showed a moderately large mass lesion with thin enhancing walls in the right iliac fossa region Figure 1. Since the risk of developing an adenocarcinoma of the colon is six times greater in patients with a mucovele than in the general population, colonic surveillance is warranted in these cases 5.

Ruptured giant mucocele of the appendix with pseudomyxoma peritonei

The diameter of the non-neoplastic mucocele simple and hyperplastic is smaller than the neoplastic mucocele cystadenoma and cystadenocarcinoma ; however, there is no difference related to size among benign and malignant neoplastic mucoceles.

Aortopulmonary window Summary A year-old woman presented with progressive dyspnea Epithelial noncarcinoid tumors and tumor-like lesions of the appendix. Her clinical examination was indicative of acute abdomen with a palpable mass in the right iliac fossa.

Acta Cytol ;40 2 Gastrointest Endosc ;35 5: We subdivided the mucoceles histologically on the basis of the World Health Organization classification. It’s one of the safest operations we do, if there is the slightest suspicion that there might be an appendiceal carcinoma. Support Center Support Center. This article has been cited by other articles in PMC. A clinicopathologic analysis of cases.

Giant mucinous cystadenoma of the appendix. A year-old man presented to the emergency department at Baylor University Medical Center at Dallas with vomiting and acute worsening of longstanding abdominal pain with localization to the right lower quadrant. National Center for Biotechnology InformationU. More than half of appendiceal mucoceles are mucinous cystadenomas, most of which can be treated by appendectomy alone, with careful exploratory laparotomy for mucinous peritoneal adhesions typical of pseudomyxoma.


Only 5 patients with synchronous neoplasms had symptoms that could be attributed to appendiceal mucocele. The initial operation should include appendectomy with en-block resection of the appendicular mesenteric fat and any fluid or mucus must be recovered for cytologic examination [ 736 ].

Its main complication is pseudomyxoma peritonei. The clinical flow of the disease does not have a specific picture. Having said that, if you look at this group of patients with cystadenocarcinoma, they range from patients with a small amount of mucous, a small quantity of intraperitoneal neoplastic cellular elements, sometimes implanted, sometimes not, sometimes just a large amount of mucin associated with an adenocarcinoma of the appendix.

Ruptured giant mucocele of the appendix with pseudomyxoma peritonei

Specific symptoms collected included abdominal pain, abdominal mass, weight loss, nausea or vomiting, obstipation, and change muccocele bowel habits. As to incidental surgery, we need to keep the patient’s interest foremost. Calcific deposits were present in the wall of the appendix, but there were no surrounding inflammatory changes Figure 1a.

Mucocele of the appendix is a rare disease. World J Surg Oncol ;3 The rationale for this approach is the resection of occult lymph nodal metastases within the ileocolic lymphatic system [ 7 ]. Eur J Surg Oncol ;30 3: The patient was afebrile with stable vital signs and a normal white blood cell count.