2024年9月6日 · Appendiceal mucoceles occur when obstruction of the appendiceal lumen causes mucus to accumulate and progressively distend the appendix. The term describes an imaging appearance rather than a pathological entity.

2012年11月23日 · In differentiating acute appendicitis with mucocele from acute appendicitis without mucocele, our results show that the most discriminating CT features are maximal luminal diameter of the appendix and the presence of cystic dilatation and mural calcification.

2013年9月23日 · Two experienced radiologists working in consensus assessed the shape, short diameter, density, contour, and wall thickness of the masses. The presence of calcifications, internal septations, soft-tissue thickening, periappendiceal fat stranding, intraperitoneal free fluid and pseudomyxoma peritonei were also evaluated.

Radiologists should be familiar with key anatomical landmarks and with the various imaging features of mucoceles of the appendix, in order to provide a meaningful differential diagnosis of a lesion in the right lower abdominal quadrant.

2023年8月22日 · Appendiceal mucocele is a clinical term referring to a mucus filled, distended appendix Essential features Asymptomatic distension of the lumen due to the accumulation of mucin

2019年3月6日 · A mucocele is an appendiceal mass characterized by hypersecretion of mucus contained within the appendix causing dilatation of the lumen. Etiology Mucoceles of the appendix are caused by excessive mucous production secondary to retention cyst (simple) (18%), mucosal hyperplasia (20%), mucinous cystadenoma (52% to 84%), or mucinous ...

6 天之前 · Differentiation of histologic subtypes of appendiceal mucoceles may prove to be difficult on computed tomography (CT). The main objective of this study was to identify the CT features of mucocele of the appendix and correlate the imaging findings with histopathology in inflammatory, benign, and malignant neoplastic lesions, and whether these entities can be accurately differentiated on CT imaging.

2023年6月29日 · The primary imaging finding for detection of appendiceal mucocele is distension of the appendiceal lumen with fluid, which may involve the entirety or a portion of the appendix. Aside from mucocele, the main differential consideration for appendiceal dilatation is appendicitis, which may be associated with adjacent fat stranding, fluid, gas, or ...

Appendiceal mucoceles occur when there is an abnormal accumulation of mucin causing abnormal distention of the vermiform appendix due to various neoplastic or non-neoplastic causes. The patient was referred for appendectomy and histopathology was compatible with appendiceal mucocele.

2014年4月13日 · With the advent of ultrasonography (US) and computed tomography (CT), it has been possible to preoperatively diagnose mucocele of the appendix. We describe the spectrum of US and CT findings of mucocele of the appendix and …