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Imaging features of primary extranodal lymphomas.
S C Chua1, F I Rozalli, S R O'Connor
1Department of Nuclear Medicine, PET, and Radiology, The Royal Marsden NHS Foundation Trust, Sutton, Surrey, UK. sue.chua@rmh.nhs.uk
Clinical Radiology
|May 6, 2009
Summary
Extranodal lymphomas, tumors outside lymph nodes, present unique imaging features. This review details their radiological appearances based on current World Health Organization classifications.
Area of Science:
- Radiology
- Oncology
- Pathology
Background:
- Lymphomas typically affect lymph nodes, but up to 40% originate extranodally.
- Extranodal lymphomas exhibit distinct pathological, radiological, and clinical characteristics.
- Accurate radiological descriptions are challenged by evolving lymphoma classifications.
Purpose of the Study:
- To review the radiological appearances of primary extranodal lymphomas.
- To categorize these appearances according to the current World Health Organization (WHO) lymphoma classification.
- To highlight the diagnostic value of imaging in identifying extranodal lymphoma subtypes.
Main Methods:
- Comprehensive literature review of radiological imaging studies.
- Analysis of imaging findings across various extranodal sites.
- Correlation of radiological features with current WHO lymphoma classifications.
Main Results:
- Extranodal lymphomas demonstrate diverse radiological features.
- Specific imaging patterns can suggest lymphoma diagnosis and subtype.
- Radiological findings vary depending on the extranodal site and lymphoma subtype.
Conclusions:
- Radiological assessment is crucial for diagnosing and subtyping extranodal lymphomas.
- Understanding current WHO classifications aids in interpreting imaging findings.
- This review provides a framework for recognizing extranodal lymphoma on medical imaging.
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