Kalen Riley

Neuroradiologist, Mayo Clinic. @UofUNeuro, @IURadiology, @OhioStateMed, @KelleyIndy, @DukeU grad. Opinions are my own.

[Philip R. Chapman, MD @PhilipRChapman1]

In a patient with prior radiation for nasopharyngeal carcinoma (NPC) or other primary malignant tumor such as adenoid cystic carcinoma, a new intraparenchymal lesion in the anterior temporal lobe is much more likely to represent radiation necrosis than metastatic disease. (Radiation necrosis until proven otherwise)

Imaging clues that favor radiation necrosis:
-Location: anterior/inferior temporal lobe ( and within radiation field)
-Timing: Within first 3 years of radiation
-Enhancement: irregular, ring-like or “soap-bubble”
-Edema: often disproportionate
-Perfusion (DSC MRI): ↓ rCBV
-MR spectroscopy: lipid-lactate peaks, ↓ choline

Metastasis, while rare, becomes more plausible if:
-Lesion is outside radiation field
-Multiple lesions in atypical locations (e.g., cerebellum, cortex elsewhere)
-Markedly elevated perfusion (high rCBV)
-Known systemic metastatic progression

[Kalen Riley @KRileyMD]

@ASHNRSociety @remyrlobo @callyrobs @DShatzkes @CDP_Rad @rhwiggins @nakoontz @CMGlastonbury @tabby_kennedy @PhilipRChapman1 @cmtomblinson @amyfjuliano

[Kalen Riley @KRileyMD]

@ASHNRSociety @remyrlobo @callyrobs @DShatzkes @CDP_Rad @rhwiggins @nakoontz @CMGlastonbury @tabby_kennedy @PhilipRChapman1 @cmtomblinson @amyfjuliano

[Hillary Kelly, MD @hillaryrkelly]

It’s time for my annual @RSNA blast to begin!

The Head & Neck programming is always 💯 high yield with the “best of the best” educators and experts. 🗣️👂👃👁️🧠

Head to https://t.co/1Yx4iNGEe1 to build your #RSNA25 agenda! Or just bookmark this:

[Niky Farid @DrNikyFarid]

Another fun and fabulous ASHNR! Thank you to ⁦@PhilipRChapman1⁩ for planning an amazing meeting with world class educational content. Sad to miss the gala tonight but looking forward to next year’s meeting in Pittsburgh ⁦@ASHNRSociety⁩ ⁦@CynXinWu⁩ ⁦

[ASHNR @ASHNRSociety]

Important to recognize the concept of deep cervical fascia, but memorizing the specific layers is less important! #ASHNR25

[ASHNR @ASHNRSociety]

Welcome to #ASHNR25 !! Thanks to Dr. Chapman for organizing a fantastic program!

[ASHNR @ASHNRSociety]

#ASHNR25 is less than 2 months away!! Join us in Las Vegas 9/24-28 for the premier head and neck imaging meeting and learn from amazing educators. This year's meeting will feature new interactive parallel sessions and hands-on a ultrasound workshop to round out the fantastic educational program.

Register now at https://t.co/X5dMmkFDMC

[ASHNR @ASHNRSociety]

🚨🚨🚨The #ASHNR25 abstract deadline has been extended!! Submit your original research and/or engaging educational projects by 11:59 PM June 4, 2025!! We look forward to seeing all of your fantastic work in Las Vegas!

@amyfjuliano @bpoliceni @PhilipRChapman1 @CMGlastonbury

[ASHNR @ASHNRSociety]

#ASHNRCOTW #299: Neck abscess. Thx
Kelvin Tieu and Dr. Levy 4 case! #ASHNR25

Answer w/ appropriate GIF only -- stay professional & don't spoil it!

@callyrobs @DShatzkes @CDP_Rad @rhwiggins
@nakoontz @KRileyMD @CMGlastonbury @tabby_kennedy @PhilipRChapman1 @cmtomblinson
@amyfjuliano @bpoliceni @MohitTCCNeuro
@AshokSrini15 @KatieTraylorDO @CynXinWu

[Kalen Riley @KRileyMD]

Check out this fantastic article just published by my wife and her group! https://t.co/lclcHe5pnV

[Christine M Glastonbury, MD @CMGlastonbury]

🌟#ASHNR25 abstracts OPEN & we are EXCITED to announce FOUR member-in-training $2k travel awards to attend this year's meeting in Las Vegas! 🌟@ASHNRSociety

[ASHNR @ASHNRSociety]

We are thrilled to announce a fantastic new benefit of ASHNR membership!! The ASHNR Head and Neck Radiology Curriculum (HNRC) is a curated collection of 82 superb lectures covering a breadth of H&N imaging topics from past annual meetings. Designed for radiologists at all levels, it allows for a customizable, structured approach to learning H&N imaging. Visit https://t.co/Ku6Ip5USm9 today and use your member login to access this wonderful new resource! If you haven't renewed your membership for 2025, now is the perfect time!!

@cmtomblinson

[ASHNR @ASHNRSociety]

#ASHNRCOTW #283: Abnl eye movements. Thx
@madisenburns1 + @jhoukMD 4 case! #ASHNR25

Answer w/ appropriate GIF only -- stay professional & don't spoil it!

@callyrobs @DShatzkes @CDP_Rad @rhwiggins
@nakoont @KRileyMD @CMGlastonbury
@tabby_kennedy @PhilipRChapman1 @cmtomblinson @amyfjuliano @bpoliceni @MohitTCCNeuro @AshokSrini15 @KatieTraylorDO @CynXinWu

[ASHNR @ASHNRSociety]

#ASHNRCOTW #278: ANSWER. Thx @janice_a_wang +
@kelly_dahlstrom 4 case! #ASHNR25

@callyrobs @DShatzkes @CDP_Rad @rhwiggins
@nakoontz @KRileyMD @CMGlastonbury @tabby_kennedy @PhilipRChapman1 @MohitTCCNeuro @AshokSrini15 @amyfjuliano @CynXinWu @bpoliceni @KatieTraylorDO

[ASHNR @ASHNRSociety]

#ASHNRCOTW #278: Pulsatile Tinnitus. Thx
Janice Wang + @kelly_dahlstrom 4 case! #ASHNR25

Answer w/ appropriate GIF only -- stay professional & don't spoil it!

@callyrobs @DShatzkes @CDP_Rad @rhwiggins
@nakoontz @KRileyMD @CMGlastonbury
@tabby_kennedy @PhilipRChapman1

[Philip R. Chapman, MD @PhilipRChapman1]

Save the Date! San Diego was huge hit this year. Never too early to start planning for next year's ASHNR Annual Meeting Sept 24-28, 2025 at the Encore in Las Vegas @ASHNRSociety

[ARRS @ARRS_Radiology]

Registration for the November symposium is now open! Join @nakoontz and expert radiologists on November 14 to deepen your understanding of head and neck anatomy. Use the link in our bio to register now.

[Christine M Glastonbury, MD @CMGlastonbury]

#HNmonograph ✨October issue @RadioGraphics is ALL HEAD & NECK! Fantastic papers from around the globe [!] with gorgeous images + graphics! @DShatzkes @drjengillespie @drSurjthVattoth @pbunchmd @drsuyash @tabby_kennedy @ashasarm @alexandra_foust @AmitAgarwalMD @GillianPotter7

[Amanda Aguilera, MD @AAguilera_MD]

The non-recurrent right laryngeal nerve is a rare but important variant to be aware of to help prevent injury during surgery. Seen in the setting of an aberrant right subclavian artery.

@LNLedbetter vocal cord paralysis talk at #ASHNR24