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Plastron Appendicitis Mimicking a Malignant Adnexal Mass: Insights From 18 F-FDG PET/CT
1Department of Nuclear Medicine, SBU Trabzon Kanuni Training and Research Hospital, Ortahisar, Trabzon, Turkey.
Abstract:
Plastron appendicitis is a rare complication of acute appendicitis, characterized by localized and encapsulated inflammation within the surrounding tissues. It accounts for ∼4%-5% of all acute appendicitis cases. The mass-like appearance of plastron appendicitis can mimic various malignant pathologies, particularly those of the adnexal region. Due to its rarity, diagnosing plastron appendicitis can be challenging. Advanced imaging techniques, such as 18 F-FDG PET/CT, are crucial in differentiating it from other pathologies. In this case presentation, we aim to present the 18 F-FDG PET/CT and contrast-enhanced CT imaging findings of a patient with plastron appendicitis, which was initially suspected to be a malignant adnexal mass.
Insights
Plastron appendicitis, a rare appendicitis complication, presents as an inflammatory mass mimicking cancer. Advanced imaging like 18F-FDG PET/CT aids in accurate diagnosis, distinguishing it from malignant conditions.
Area of Science:
- Gastroenterology
- Radiology
- Oncology
Background:
- Plastron appendicitis is a rare complication of acute appendicitis, occurring in 4-5% of cases.
- It presents as a localized, encapsulated inflammatory mass.
- Its mass-like appearance can be mistaken for malignant pathologies, especially adnexal masses.
Purpose of the Study:
- To present the imaging findings of plastron appendicitis using 18F-FDG PET/CT and contrast-enhanced CT.
- To highlight the diagnostic challenges posed by this rare condition.
- To emphasize the role of advanced imaging in differentiating plastron appendicitis from malignancy.
Main Methods:
- Case presentation of a patient with suspected malignant adnexal mass.
- Utilized 18F-FDG PET/CT for advanced imaging.
- Employed contrast-enhanced CT for detailed anatomical assessment.
Main Results:
- Imaging findings of plastron appendicitis were documented.
- The case initially presented as a suspected malignant adnexal mass.
- Advanced imaging was key in the diagnostic process.
Conclusions:
- Plastron appendicitis is a rare but important differential diagnosis for adnexal masses.
- 18F-FDG PET/CT and contrast-enhanced CT are valuable tools for diagnosis.
- Early and accurate diagnosis is crucial for appropriate patient management.
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