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Appendicitis and its mimickers.

M J Lane¹, R E Mindelzun

¹Department of Radiology, Brooke Army Medical Center, Ft. Sam Houston, San Antonio, TX 78234-6200, USA.

Seminars in Ultrasound, CT, and MR

|May 1, 1999

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Unenhanced helical CT accurately diagnoses acute appendicitis without contrast risks or delays. This method is non-operator-dependent, offering a safe and efficient evaluation for suspected appendicitis.

Area of Science:

Radiology
Medical Imaging
Gastrointestinal Imaging

Background:

Acute appendicitis is a common surgical emergency.
Accurate diagnosis is crucial to prevent complications.
Traditional imaging methods may involve contrast agents or delays.

Purpose of the Study:

To evaluate the accuracy of unenhanced helical CT for diagnosing acute appendicitis.
To review the characteristic CT findings of acute appendicitis.
To discuss conditions that mimic appendicitis on CT.

Main Methods:

Review of unenhanced helical CT scans in patients with suspected appendicitis.
Analysis of CT findings indicative of acute appendicitis.
Comparison with clinical presentation and other imaging modalities.

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Main Results:

Unenhanced helical CT is an accurate diagnostic technique.
The examination is not operator-dependent.
It avoids risks associated with intravenous contrast material.
It eliminates delays from oral and rectal contrast administration.

Conclusions:

Unenhanced helical CT is a reliable and safe method for evaluating suspected acute appendicitis.
It offers advantages over contrast-enhanced techniques.
Familiarity with its findings and mimics is essential for accurate diagnosis.