MRI brain
Axial T2 image show a hyperintense area in the left temporal lobe white matter.
Absence of perilesional odema on FLAIR.
The same is hyperintense on the T1w images.
This is an intra parenchymal bleed.
Cause of bleed is thrombosed dural venous sinuses.
The hyperintense signal on T1 as well as T2 weighted MRI is characteristic of extracellular meth hemoglobin - a sub acute stage blood degradation product.
Absence of perilesional odema on FLAIR - goes in favour of Late Sub acute stage bleed (7-14 Days)
Axial T2 image show a hyperintense area in the left temporal lobe white matter.
Absence of perilesional odema on FLAIR.
The same is hyperintense on the T1w images.
This is an intra parenchymal bleed.
Cause of bleed is thrombosed dural venous sinuses.
The hyperintense signal on T1 as well as T2 weighted MRI is characteristic of extracellular meth hemoglobin - a sub acute stage blood degradation product.
Absence of perilesional odema on FLAIR - goes in favour of Late Sub acute stage bleed (7-14 Days)
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