Presentation
Multiple unexplained neurological symptoms.
Patient Data
MRI shows an asymmetric left hemisphere, significantly larger than the right one, compatible with hemi-megalencephaly. Moreover, there is a subtle loss of GM-WM differentiation on the right side compared to the left. There is no visible hemi-hypertrophy of the face or calvarium. There is an abnormal subcortical white matter FLAIR signal on the left centrum semi-ovale and corona radiata.
Case Discussion
However, this patient was known for a Proteus syndrome with limbs hemi-hypetrophy. Hemimegalencephaly is associated with various neurological conditions, but it's still a very rare entity. It can easily be overlooked.
Related article :
- Hemimegalencephaly
- Bilateral megalencephaly : definitely harder to diagnosis on imaging only
- Proteus syndrome