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Key Image

Axial CT abdomen images in the lower abdomen and pelvis

Key Findings

Serial CT images through the lower abdomen demonstrate the appendix (blue arrows) that ruptures into a large fluid collection (yellow outline). Multiple round calcifications are identified in the peritoneum, which may represent appendicoliths (yellow arrow).

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Diagnosis

Ruptured Appendicitis

Discussion

Rupture of the appendix is a complication of acute appendicitis detected too late. This patient presented after rupture had occurred. The patient was treated with antibiotics and the patient underwent percutaneous drainage and catheterization of the fluid collection in the low abdomen.

References / Resources

Additional Information:

1. Dahnert*: 818
2. Primer*: 147
3. Related Article:

   Leite NP. "CT Evaluation of Appendicitis and Its Complications: Imaging Techniques and Key Diagnostic Findings." August 2005 AJR, 185, 406-417.

   Horton KM. "CT Evaluation of the Colon: Inflammatory Disease." March 2000 Radiographics: 20, 399-418.

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