Related Experiment Video
Updated: Aug 22, 2026
Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases
Published on: July 28, 2013
Atypical diffusion-weighted magnetic resonance findings in glioblastoma multiforme
1Division of Radiological Imaging and Bioinformatics, NMR Research Centre, Institute of Nuclear Medicine and Allied Sciences, SK Mazumdar Road, Timarpur, Delhi-110054, India.
Abstract:
The present report describes two patients with glioblastoma multiforme with the tumour demonstrating low central apparent diffusion coefficient values similar to those found in cerebral abscesses. Although conventional MR images were fairly specific for tumour, the cases illustrate the need for exercising caution when using diffusion-weighted (DW) MR images for the differentiation of necrotic brain tumours from abscesses. The DW MR imaging information should always be integrated with the conventional spin-echo MR images.
Insights
Diffusion-weighted MRI can show low values in glioblastoma, mimicking cerebral abscesses. Always combine diffusion-weighted MRI findings with conventional MRI for accurate diagnosis of brain tumors and abscesses.
Area of Science:
- Neurology
- Radiology
- Oncology
Background:
- Glioblastoma multiforme is an aggressive primary brain tumor.
- Cerebral abscesses are collections of pus within the brain.
- Diffusion-weighted (DW) magnetic resonance (MR) imaging is a valuable tool for characterizing brain lesions.
Observation:
- Two patients with glioblastoma multiforme presented with low central apparent diffusion coefficient values.
- These diffusion values were similar to those typically observed in cerebral abscesses.
Findings:
- Conventional MR images were relatively specific for differentiating tumor from abscess.
- Diffusion-weighted MR imaging alone can be misleading in differentiating necrotic brain tumors from abscesses due to overlapping diffusion characteristics.
Implications:
- Caution is necessary when interpreting diffusion-weighted MR images for differentiating necrotic brain tumors from abscesses.
- Integrating diffusion-weighted MR imaging findings with conventional spin-echo MR images is crucial for accurate diagnosis.
- This highlights the importance of multimodal imaging in neuro-oncology and infectious disease diagnosis.
