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Renal lymphoma: MR appearance with diffusion-weighted imaging.

Dustin D Nguyen¹, Dmitry Rakita

¹From the Department of Radiology, Baystate Medical Center, Tufts University, Springfield, MA.

Journal of Computer Assisted Tomography

|September 19, 2013

Summary

Imaging of renal lymphoma using MRI and diffusion-weighted imaging is not well documented. This case highlights lymphomatous lesions with mild enhancement and restricted diffusion, suggesting potential diagnostic value of apparent diffusion coefficient values.

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Area of Science:

Radiology
Oncology
Medical Imaging

Background:

Limited literature exists on imaging characteristics of renal lymphoma.
Accurate diagnosis of renal masses is crucial due to varied management pathways.

Observation:

A case of renal lymphoma in a 61-year-old patient is presented.
Computed tomography and magnetic resonance imaging were used for correlation.
Lymphomatous lesions showed mild enhancement and restricted diffusion on imaging.

Findings:

Restricted diffusion on diffusion-weighted imaging (DWI) is a key finding in renal lymphoma.
Apparent diffusion coefficient (ADC) values may aid in differentiating renal lesions, particularly on noncontrast imaging.
Hypoenhancing renal masses can represent various pathologies including renal cell carcinoma, lymphoma, urothelial tumors, or metastases.

Implications:

Diffusion-weighted imaging and ADC values show promise in improving the diagnosis of renal lymphoma.
Further research is needed to establish the definitive role of ADC values in differentiating renal masses.
Improved diagnostic accuracy can lead to more appropriate and timely patient management.