| CASE REPORT |
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| Year : 2009 | Volume
: 57
| Issue : 2 | Page : 203--205 |
Adult medulloblastoma mimicking Lhermitte-Duclos disease: Can diffusion weighted imaging help?
Puneet Mittal, Kamini Gupta, Kavita Saggar, Supreet Kaur
Department of Radiodiagnosis, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
Correspondence Address:
Puneet Mittal
Department of Radiodiagnosis, Dayanand Medical College & Hospital, Tagore Nagar, Civil Lines, Ludhiana, Punjab - 141 001
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0028-3886.51297
Lhermitte-Duclos disease, also known as dysplastic cerebellar gangliocytoma, is a rare cerebellar benign tumor with characteristic appearance of thickened cerebellar folia giving a laminated or striated appearance, quite diagnostic of the condition. We had seen a patient with medulloblastoma with imaging findings suspicious for thickened cerebellar folia reminiscent of Lhermitte-Duclos disease. However, it showed patchy contrast enhancement and restricted diffusion on diffusion-weighted imaging, which are not typically associated with Lhermitte-Duclos disease. Presence of restricted diffusion proved to be a useful diagnostic feature for differentiation between the two lesions. This patient highlights the importance of obtaining all the MR imaging sequences in suspected Lhermitte-Duclos disease and histological diagnosis if there is doubt.
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