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Published on: August 24, 2019
Appendiceal mucocele: clinical and imaging features of 14 cases
Purpose:
Appendiceal mucocele as a cystic dilatation filled with mucinous material is a very rare disease of the appendix vermiformis. Its preoperative diagnosis is still acking behind common use of imaging techniques.
Methods:
Retrospective analysis of the patients with a pathological diagnosis of appendiceal mucocele with regard to clinical and imaging features.
Results:
The study group included 14 patients with a mean age of 51 years (range from 17 to 82 years). Predominant symptoms were pain and feeling of fullness in the right iliac fossa in 9(64%) and 5 (36%) patients, respectively. For imaging purposes, use of computed tomography resulted in preoperative diagnosis of appendiceal mucocele in half of the patients(50%). 93% of the cases underwent appendectomy, and righth emicolectomy was performed in one patient (7%). Mucocele and cystadenoma were detected in 11 (79%) and 3 (21%)patients, respectively. Presence of acute appendicitis and coloncarcinoma were confirmed afterwards histologically in 4 (29%)and one (7%) patients, respectively.
Conclusions:
Despite the common use of imaging studies,preoperative diagnosis of appendiceal mucocele is still not possible in most of the cases. During surgical treatment,which is tailored according to imaging and intraoperative findings, precautionary measures to avoid intraperitoneal rupture and dissemination should be taken.
Insights
Diagnosing appendiceal mucocele remains challenging despite imaging advances. Surgical management requires careful measures to prevent complications like intraperitoneal rupture.
Area of Science:
- Gastroenterology
- Surgical Pathology
Background:
- Appendiceal mucocele is a rare cystic dilatation of the appendix.
- Preoperative diagnosis is often difficult despite advanced imaging.
Purpose of the Study:
- To analyze clinical and imaging features of appendiceal mucocele.
- To evaluate the diagnostic accuracy of imaging techniques for this condition.
Main Methods:
- Retrospective analysis of patients with pathologically confirmed appendiceal mucocele.
- Review of clinical presentation, imaging findings, and surgical outcomes.
Main Results:
- 14 patients analyzed (mean age 51). Common symptoms: right iliac fossa pain (64%) and fullness (36%).
- Computed tomography diagnosed appendiceal mucocele in 50% of cases.
- Appendectomy performed in 93%; 79% were mucoceles, 21% cystadenomas. Acute appendicitis (29%) and colon cancer (7%) were incidentally found.
Conclusions:
- Preoperative diagnosis of appendiceal mucocele remains low, even with imaging.
- Surgical treatment necessitates precautions against intraperitoneal rupture and dissemination.
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