Yan Chu, MD

Beyond grateful 🙏🏼💙 Thank you to all my mentors, family, and friends along the way! #GItwitter #womeninGI @AmCollegeGastro @ScrubsNHeels @WomeninEndo

Endoscopic rubber hood: •Bell-shaped .Protects the mucosa of the pharynx, esophagus, and cardia during extraction. •Hood is flipped back during insertion and reverts when pulled back against the cardia- covering the foreign object •Excellent for short sharp objects

Portal vein thrombosis in cirrhosis: anticoagulation may reduce mortality, but the bleeding tradeoff is real. In borderline cases, what tips your decision — acuity, thrombus extent, transplant candidacy, or something else?

Basics of altered GI anatomy: pubmed.ncbi.nlm.nih.gov/26431595/ 🪙Efferent limb: Away from anastomosis 🪙Afferent limb: bile, pancreas juice, draining towards the anastomosis. 🪙Roux limb: savior limb coming to save obstructed/ distended stomach (in bariatrics). 🪙Scopes: Figure 2!

Management of Eosinophilic Oesophagitis (EoE) - 2026 ASGE guidelines 📸: sciencedirect.com/science/articl…

Colorectal cancer development and opportunities for screening 💡🔬 #ColorectalCancerAwarenessMonth 📸: dovepress.com/colorectal-can…

Is it Barrett’s? Or just "Burnt Salmon"? 🍣 We are taught to look for "salmon-colored" mucosa. But as this slide from EndoCollab shows, there are 50+ shades of salmon. The Clinical Reality: Identifying the color change is only Step 1. To confirm the diagnosis, you must map the landmarks: 1️⃣ Locate the Gastric Folds (the true GEJ). 2️⃣ Look for the palisade veins (which exist only in the esophagus). 3️⃣ If the "salmon" color extends above these landmarks, you are in the danger zone. Don't rely on color alone. Trust your anatomy. Watch the full video in the comments.

The Montreal Classification for Crohn’s disease 📍

Types of colorectal polyps 🍄 📸: UEG Education (Gutflix 🆓)

Most patients don't realize their doctors and nurses think about them in the spaces between visits. While driving home, getting ready for bed, while falling asleep. Our work is a part of us, and we care about you. That's all.

Marginal ulcer after RYGB Mgmt ▪️Stop smoking/NSAIDs ▪️Treat H. pylori ▪️Remove foreign body ▪️Open-cap PPI BID x3m ▪️Sucralfate 1g QID ▪️No response ➡️ H2RA ➡️ misoprostol ➡️ PCAB ▪️Refractory ➡️ endo therapy ▪️Failure ➡️ surgical revision 🔗 journals.lww.com/ajg/citation/2…

📢 Roll Call! ACG Guidelines Edition 🧵👇: ACG Guidelines published in the #RedJournal in 2025, with links to the 📕guidelines, 🎙️podcasts, and ℹ️highlights! ➡️ gi.org/guidelines ⬅️ @MLongMD @JasmohanBajaj

Excellent illustrations, review of pancreas cysts: nejm.org/doi/full/10.10… ➡️ 15% panc cancer arise from cysts ➡️ EUS>MRI: connection with ducts, ampulla evaluation, mural nodules ➡️VHL: Serous, MEN: NET, KRAS or GNAS: IPMN, GTNNB1: SPNT ➡️Minimal surgical excision is an option!

An inventive way to understand liver anatomy: This clever illustration uses the human hand to represent liver segments and vascular structures, providing a quick and memorable visual reference for healthcare professionals and students alike.

The new blood-based test is NOT RECOMMENDED as a first line screening tool for colorectal cancer.

@ACG_EBGI @endoscopyjrnl @BilalMohammadMD @UNCGastro @JosephHabibi_MD @clivejmiranda @seanpattyp @AndrewMMoon @AmCollegeGastro @Neer_Dutta1 @EBGIdoc @UMN_GIHep @AmerGastroAssn @DarylRamai @KimberlyHoMD @isabelle_byers @DannyIssaMD @NickMcDonaldMD @RCaseyTurnerMD @BenClement_MD @MaryamBHaiderMD @MItaniMD @achokshi1 @menon_mythili @jalpa_devi @SLUAdvancedEndo @SuchapaAraya @NichaWongja @jordanmaloneDO @EricaLoonDO @JameelAlp @VijaySAre9 @KawtharAMohamed @WalkerReddMD @SusanLouMD @BJHansonMD @mspibddoc @DVinsard @ReutDanieliMD @ReezwanaCMD @LizzieAbyMD @TGHermanMD @RahulKarnaMD @gioroldanc @JosephKumka @annaunchaleeMD @ElfertKhaled @khalid_ahmedMD @TolgaGidenerMD @bengnonny 9/ Clinical Relevance For routine EMR of ≥20 mm proximal polyps using hot snare: ➡️ Prophylactic clipping did NOT reduce delayed bleeding ⚠️ Key Risk Factors for Delayed Bleeding: • Cecal polyps (RR 2.23) • Anticoagulant use (RR 3.23)

1/ ⏰ for #EBGI Tweetorial🧵w/ @nataliejowilson! “Does Prophylactic Clipping Prevent Delayed Bleeding After EMR of Large Proximal Colonic Polyps?” 📜Summary bit.ly/3KzeNSz 📰Article bit.ly/3XuwjKJ

BARRETT'S NEOPLASIA CLOCKFACE DISTRIBUTION Circumferential spatial prediction CONFIRMS lesions cluster by quadrant • RIGHT WALL (1–5 o'clock) DOMINATES → 68% of all dysplastic foci • 3 o'clock position = HOT SPOT → highest density single + multifocal lesions • Left wall (7–11 o'clock) → coldest zone, almost zero hits PRO TRICK → Always start targeted biopsies at 2–4 o'clock position first → catches 92% of visible abnormalities in <90 sec Clockface mapping → predicts 87% of lesion location before you even see them Source: Ishimura N, Digestion 2014;89:291-8. Your unit still doing random 4-quadrant biopsies first?

@DVinsard Gastric SEL by location & buzzwords

“The observational study found that women who reported consuming 9 to 10 daily servings of ultra-processed foods seemed to have a 45% greater likelihood of getting colon polyps before the age of 50 — as compared with women who had the least amount.” washingtonpost.com/wellness/2025/…

1/8 ⏰ for #EBGI Tweetorial🧵w/ @ceomaliko1 “[Semaglutide for the Treatment of Metabolic Dysfuction-Associated Steatohepatitis - MASH🚀]” 📜Summary: tinyurl.com/semaebgi 📰 tinyurl.com/semamash #GITwitter