1naresh

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MR imaging findings
Patient No. Location Size (cm) T1-weighted T2-weighted Enhancement Pattern
1 Right middle third 1.4 Central hypointensity, peripheral hyperintense rim Central hyperintensity, peripheral hypointense rim Peripheral irregular rim enhancement
2 Right middle third 2 Central hypointensity, peripheral hyperintense rim Central hyperintensity, peripheral hypointense rim; perilesional hyperintense edema A thick, irregular peripheral rim enhancement; perimural hypointense halo (target sign); perilesional diffuse contrast enhancement
3 Left middle third 3 Central hypointensity, peripheral hyperintense rim Central hyperintensity, peripheral hypointense rim; perilesional hyperintense edema A thick, irregular peripheral rim enhancement
4 Left anterior–middle third 2 Central hypointensity, peripheral hyperintense rim Central hyperintensity, peripheral hypointense rim; perilesional hyperintense edema A thick, irregular peripheral rim enhancement; perimural hypointense halo (target sign); perilesional diffuse contrast enhancement
5 Right middle third 1.2 Diffusely hypointense Central marked hyperintensity, peripheral slightly increased signal intensity Diffuse enhancement
6 Posterior third 2 Diffusely hypointense Heterogeneously hyperintense Diffuse marked enhancement with a nonenhancing central necrotic area
7 Posterior third 3 Diffusely hypointense Heterogeneously hyperintense Heterogeneously marked enhancement