Brain Scans: Lord of the Ring Enhancing Lesions 101

There are many causes of ring-enhancing lesions. Abscesses usually have smooth and thin rims, with restricted diffusion, and lots of surrounding vasogenic edema. Necrotic neoplasms (GBM, mets) often have thick and irregular rims with increased central diffusion - also with vasogenic edema. Fluid-secreting tumors, usually low-grade pilocytic astrocytoma or hemangioblastoma) have a nodule or only a partial rim of wall enhancement. Tumefactive demyelinating lesions (TDL) often have an incomplete rim usually without surrounding vasogenic edema.

[@luckmaster87]

Thank you. Coming to watch you live in Boston later this month

[@itz_sara1905]

Loved the lecture! Thanks so much for simplifying the concepts!

[@cetric26]

You are a wonderful teacher and a great help. Thank you for your time and effort.

[@juanzambon]

Great video!!! Keep it up!!! Thank You Magical Dr!!!

[@javedahmad2234]

Excellent lecture. Very comprehensive, short and extremely useful . Thanks a lot.please make more videos.

[@fsjones]

Excellent video! thank you!

[@ddy5iy]

Thank you! Simple and clear. I love it.

[@GonzaloMora]

Great Content and images.

[@smsadlee8566]

Concise. Very much appreciated.

[@skibitom]

Great educational video lecture. Thank you so much.

[@snoopsnoop4561]

Lovely presentation. Thanks

[@turkihamdi2582]

Thanks alot for this nice presentation

[@pacifier56]

Great job

[@franciscobermal8922]

awesome video...

[@shashiprabha3837]

Thanks doc.for this 🌹🌹🌹

[@hayathallouche1069]

Chokran, you are generous doctor
Muuuuh

[@ryankanagaratnam796]

Amazing!!!

[@jinyousif5095]

Thank u !

[@Tintanse]

Thank you sir

[@dovedove947]

magical Dr,哈哈哈，excellent video！！！

[@drmeghanabkulkarni9173]

Thank you sir.

[@Cassianandor-ib2yy]

My cat’s breath smells like cat food.

[@colleenrossall8659]

Hi I'm from the UK, I really enjoyed the video it was explained well 😊 I was wondering if you could help me?

[@MarcoLopez-wx2jr]

Sending love to you and yours. ❤️

[@elmo7trm]

شكرا لك ، سيدي

[@Dr-789]

Good...

[@aryasen353]

What about toxo,tb,ncc??

[@klisospitis]

Ευχαριστώ

[@ayaonora]

fluid is [g]ood!

[@openwrt5504]

👍