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Simplified Whole Body Plethysmography to Characterize Lung Function During Respiratory Melioidosis
Published on: February 24, 2023
Radiological manifestations of melioidosis
1Department of Radiology, Raja Isteri Pengiran Anak Saleha Hospital, Bandar Seri Begawan BA 1710, Brunei Darussalam. kianslim@gmail.com
Abstract:
Melioidosis is a serious infection that is associated with high mortality. It is due to a Gram-negative bacterium, Burkholderia pseudomallei which is an environmental saprophyte found in wet soils. Melioidosis is endemic to northern Australia and the Southeast Asia. However, there is now increasing number of reports of imported cases to regions where this infection has not been previously encountered. Almost any organ can be affected. Like many other conditions, radiological imaging is an integral part of the diagnostic workup of melioidosis. Awareness of the various radiological manifestations can help direct appropriate investigations to achieve early diagnosis and the initiation of appropriate treatment. Generally, there are no known characteristic features on imaging that can specifically differentiate melioidosis from other infections. However, the "honeycomb" appearance has been described to be characteristic for large melioidosis liver abscesses. Simultaneous involvement of various organs is also characteristics. To date, there are few data available on the radiological manifestations of melioidosis. The present pictorial essay describes melioidosis affecting the various organs.
Insights
Melioidosis, a severe bacterial infection caused by Burkholderia pseudomallei, can affect multiple organs. Radiological imaging aids diagnosis, with a "honeycomb" liver abscess appearance being characteristic.
Area of Science:
- Infectious Diseases
- Radiology
- Microbiology
Background:
- Melioidosis is a severe, often fatal infection caused by Burkholderia pseudomallei, an environmental bacterium.
- It is endemic in Southeast Asia and Northern Australia but increasingly reported globally.
- The infection can affect virtually any organ system.
Purpose of the Study:
- To describe the diverse radiological manifestations of melioidosis across various organs.
- To enhance awareness among clinicians regarding imaging findings to facilitate early diagnosis.
- To highlight the importance of radiological imaging in the diagnostic workup of melioidosis.
Main Methods:
- This pictorial essay reviews radiological findings from confirmed melioidosis cases.
- It includes imaging examples of melioidosis affecting multiple organ systems.
- The focus is on characteristic and suggestive imaging features.
Main Results:
- Melioidosis can present with varied radiological findings, often without pathognomonic signs.
- Simultaneous involvement of multiple organs is a common characteristic.
- A "honeycomb" appearance in large liver abscesses is a distinctive feature.
Conclusions:
- Radiological imaging is crucial for diagnosing melioidosis and guiding treatment.
- Familiarity with melioidosis's diverse imaging spectrum aids in early detection.
- While not always specific, certain findings like "honeycomb" liver abscesses are highly suggestive.
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