CT evaluation of appendicitis and diverticulitis. Part I: Appendicitis

Rhea, James T.

doi:10.1007/pl00011821

Cited by 5 publications

(1 citation statement)

References 51 publications

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“…An important advantage of IV contrast is that it allows a complete assessment of other abdominal pathologic conditions [46] . Rhea found that other conditions were diagnosed in 34% to 80% of patients [47] .…”

Section: Discussionmentioning

confidence: 99%

The Normal Appendix on CT: Does Size Matter?

et al. 2014

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Purpose(1) To evaluate the frequency of visualisation and measurements of the normal appendix. (2) To correlate Body Mass Index (BMI) and gender with visualisation of the normal appendix. (3) To correlate age, gender and body length with appendiceal length.Materials and MethodsA retrospective review of 186 patients undergoing abdominal CT without suspicion of acute appendicitis was done. Frequency of visualisation and measurements (including maximal outer diameter, wall thickness, length, content, location of base and tip) of normal appendices were recorded.ResultsPrevalence of appendectomy was 34.4%. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of visualisation of the normal appendix were 76%, 94%, 96%, 67%, and 82% respectively. The mean maximal diameter of the appendix was 8.19 mm±1.6 (SD) (range, 4.2–12.8 mm). The mean length of the appendix was 81.11 mm±28.44 (SD) (range, 7.2–158.8 mm). The mean wall thickness of the appendix was 2.22 mm±0.56 (SD) (range, 1.15–3.85 mm). The most common location of the appendiceal tip was pelvic in 66% appendices. The most common location of the appendiceal base was inferior, medial, and posterior in 37%. The normal appendix contained high-density material in 2.2%. There was a significant correlation between gender and appendiceal length, with men having longer appendices than women.ConclusionMost normal appendices are seen at multislice CT using IV contrast. The maximal outer diameter of the normal appendix overlaps with values currently used to diagnose appendicitis on CT.

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Section: Discussionmentioning

confidence: 99%

The Normal Appendix on CT: Does Size Matter?

et al. 2014

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Poliarterite nodosa complicata da rottura di multipli aneurismi

Scaglione¹,

Galasso²,

Fulciniti³

Imaging Nelle Urgenze Vascolari — Body

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Stump appendicitis: surgical background, CT appearance, and imaging mimics

2014

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Stump appendicitis, also known as remnant appendicitis, is an uncommon entity with little radiologic literature. It is the result of unintentional incomplete appendectomy with subsequent inflammatory changes in the appendiceal remnant. A retrospective review of the radiology and pathology archives at our institution over an 8-year period yielded six surgically/pathologically confirmed cases. Imaging findings at presentation were evaluated, including appendiceal stump length, appendiceal stump diameter, presence or absence of surrounding stranding in the periappendiceal fat, and presence or absence of complication (perforation or abscess). The CT findings of the six cases had an average surgical specimen appendiceal stump length of 3.5 cm (range 2.0-5 cm) and an average appendiceal diameter of 12.3 mm (range 10-16 mm). All six cases demonstrated the presence of periappendiceal inflammatory fat stranding on the CT scan. Range of imaging presentation is reviewed with pictorial examples as well as examples of potential false-positive cases (mimics) including Crohn's disease, residual surgical drain tract, and epiploic appendagitis. Familiarity with stump appendicitis as well as its imaging mimics may lead to earlier diagnosis and treatment and prevent unnecessary complications.

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CT evaluation of appendicitis and diverticulitis. Part I: Appendicitis

Cited by 5 publications

References 51 publications

The Normal Appendix on CT: Does Size Matter?

The Normal Appendix on CT: Does Size Matter?

Poliarterite nodosa complicata da rottura di multipli aneurismi

Stump appendicitis: surgical background, CT appearance, and imaging mimics

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