Brain
2. Findings and Diagnosis
71000c03
The series of MRI images from a 70 year old male who by history suffered a stroke 1 month ago and has new onset symptoms. the series of images reveal complex changes of a subacute hemorrhagic infarct. Image a is from a DWI sequence and it shows a heterogenous increase in signal some of which represents T2 shine throughand sopme of which is bright raising the question on an acute on subacute entity. Image b is a sagittal T1 weighted image which shows areas of vague increase in density suggesting hemorrhage. Image c is a T2weighted sequence and shows some increase in water but the granular low intensity suggests hemosiderin deposit. Image d is FLAIR sequence showing increase brightness to the lesion in the left parietal lobe and image e is an axial FLAIR sequence The findings suggest extensive infarct in the left MCA territory which has mild mass effect on ventricles with petechial hemorrhage as seen on T2 and FLAIR and hyperintense T2 shine through on diffusion weighted images The punctate areas in left parietal lobe with restricted area of diffusion raises the question of a recent small infarct less bright regions on DWI suggests a subacute hemorrhagic infarct.
a = DWI b= T1 c= T2 d= FLAIR e=GRE
70 Male
extensive infarct left MCA territory which has
mild mass effect on ventricles
petechial hemorrhage
T2 and FLAIR hyperintense T2 shine through on diffusion weighted images
punctate area in left parietal lobe restricted area of diffusion question recent small infarct
MRI about 1 month old from clinical presentation
dx subacute hemorrhagic infarct
MRI
Davidoff MD
The series of MRI images from a 70 year old male who by history suffered a stroke 1 month ago and has new onset symptoms. the series of images reveal complex changes of a subacute hemorrhagic infarct. Image a is from a DWI sequence and it shows a heterogenous increase in signal some of which represents T2 shine throughand sopme of which is bright raising the question on an acute on subacute entity. Image b is a sagittal T1 weighted image which shows areas of vague increase in density suggesting hemorrhage. Image c is a T2weighted sequence and shows some increase in water but the granular low intensity suggests hemosiderin deposit. Image d is FLAIR sequence showing increase brightness to the lesion in the left parietal lobe and image e is an axial FLAIR sequence The findings suggest extensive infarct in the left MCA territory which has mild mass effect on ventricles with petechial hemorrhage as seen on T2 and FLAIR and hyperintense T2 shine through on diffusion weighted images The punctate areas in left parietal lobe with restricted area of diffusion raises the question of a recent small infarct less bright regions on DWI suggests a subacute hemorrhagic infarct.
a = DWI b= T1 c= T2 d= FLAIR e=GRE
70 Male
extensive infarct left MCA territory which has
mild mass effect on ventricles
petechial hemorrhage
T2 and FLAIR hyperintense T2 shine through on diffusion weighted images
punctate area in left parietal lobe restricted area of diffusion question recent small infarct
MRI about 1 month old from clinical presentation
dx subacute hemorrhagic infarct
MRI
Davidoff MD