T2-weighted images

T2-weighted images

; T2W MRI sequencing that demonstrates pathology (favours imaging water content within structures e.g. inflammation or infection)
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Both lesions were homogeneous and had nodular areas and isointense to adjacent muscles on T1 and T2-weighted images.
With T2-weighted images, the tumor is homogenous in signal intensity, with cystic or degenerative changes.
On MRI, the CAD lesion usually demonstrates low signal on T1-weighted images and hyperintense signal on T2-weighted images.
Areas of high signal on T1-weighted images and low or heterogeneous signal intensity on T2-weighted images can help identify blood products indicative of previous hemorrhage within the tumor.
Axial T2-weighted images with fluid attenuated inversion recovery (FLAIR) at the level of the basal ganglia showed an increased signal of the fornix and periventricular region around the third ventricle and the medial thalamic nuclei.
T2-weighted images usually reveal a hyperintense intramedullary lesion.
However, dermoid tumors are generally seen as hyperintense on T1, due to the presence of fatty secretions from sebaceous glands and cholesterol, and are hypointense on T2-weighted images (1).
Additionally, a small volume of noncontrast-enhancing material in the left frontal sinus was visible, which was mildly hypointense to vitreous humor on T2-weighted images and isointense to muscle on T1-weighted images.
5) The retrolental fibrovascular tissue and stalk-like hyaloid remnant are hypointense to isointense on T1- and T2-weighted images and show enhancement post contrast administration.
This malignant cardiac tumor is characterized by MRI as heterogeneity or isointensity on T1-weighted images and hyperintensity on T2-weighted images.
GCTs are low signal intensity on T1 and T2-weighted images, relating to the haemorrhagic and fibrotic components of the tumour (1).
A previous report on 27 patients with toxoplasma encephalitis demonstrated three distinct MR imaging patterns; 37% had predominantly T2-weighted hyperintense lesions, 37% had T2-weighted isointense lesions, and 26% patients had lesions with mixed signal on T2-weighted images (7).