Martin S. Tallman, MD
743 posts

Martin S. Tallman, MD
@MartinTallman
Adj Professor MSKCC. Former Chief Leukemia Service MSKCC, Past President of @ASH_Hematology. Tweets my own.
Katılım Aralık 2020
208 Takip Edilen5.2K Takipçiler

@AbbasiMuqtadir Agree of course to start ATRA at first suspicion of APL. Note pathogenesis of the coagulopathy is complicated and includes DIC, fibrinolysis, and proteolysis. The fibrinogen can occasionally even be normal at diagnosis!
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✅ Correct Answer: C. Acute Promyelocytic Leukemia (APL)
🧠 Explanation
This flow cytometry pattern is classic for APL:
🔑 Key clues:
CD33 bright
Strong MPO positivity
CD34 negative
HLA-DR negative
📌 This immunophenotype should immediately raise suspicion for APL (t(15;17), PML-RARA).
🚨 Clinical pearl:
If APL is suspected on flow → start ATRA immediately, even before cytogenetic confirmation, due to high risk of fatal DIC.
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Residents and hematology fellows. Here you go :
🧪 MCQ: Flow Cytometry in Acute Leukemia
Question
A 28-year-old patient presents with anemia, thrombocytopenia, and leukocytosis. Peripheral smear shows abnormal promyelocytes. Flow cytometry reveals the following findings:
CD45: dim
Side scatter: moderate
CD13 positive
CD33 bright positive
MPO strongly positive
CD34 negative
HLA-DR negative
CD19, CD7: negative
What is the most likely diagnosis?
#MedTwitter,#MedEd , #Hematology, #HemeTwitter, #MedStudent



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Pablo Casals b otd 1876. World’s most famous cellist and humanitarian. Our family friend knew Abe Fortas former Assoc Justice of SCOTUS an amateur violinist close to Casals then at Marlboro. His book went up chain for an autograph.@StevenIsserlis @playinglesshurt



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@playinglesshurt @MartinTallman @StevenIsserlis I realise that - but Gendron was not any old cellist . He was one of the five or six top cellists of his generation 🤷🏻♂️🤣😂🤣
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Maurice Gendron well respected French cellist b otd in 1920. Recognized for recording all 6 Bach cello solo suites.@StevenIsserlis @playinglesshurt

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@hugh_canning @MartinTallman @StevenIsserlis We cellists all study/play the suites but not everyone is fortunate enough or accomplished enough to record them all!
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@hugh_canning @StevenIsserlis @playinglesshurt Yes many cellists have recorded all 6 Suites. His recording is said to be “bold, strong, and assertive” apparently similar to his personality.
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@MartinTallman @StevenIsserlis @playinglesshurt Don’t most recorded cellists record all six of Bach’s Suites? I literally have dozens on disc 🤷🏻♂️🤣😂🤣 Plus a few viola transcriptions 🎻 😈
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@GabyHobbs @LeivaOrly @MGBResearchNews Interesting. We observed an apparent association between low cholesterol and splenomegaly in HCL and speculated it may be a marker of proliferative disease (Pandolfino et al. AJH 1998). @HCLFoundation
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Such great work by @LeivaOrly! Hypocholesterolemia =worse MPN outcomes and identifies patients at risk for progression from ET/PV to MF. #CardioOnc #ASH25 @MGBResearchNews
Orly Leiva, MD@LeivaOrly
Hey #ASH25 swing by poster 2020 to learn about low cholesterol and its implications in #MPNsm and cardiovascular outcomes. #CardioOnc @GabyHobbs @joanhowMD @Anand_88_Patel @myeloidmalig @doctorpemm @MPN_Hub
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@dania_reyes39 Agree. Pt’s internist thought it was possibly canine related. Hard to know.
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@MartinTallman That’s quite a coincidence 😬 CAP usually refers to humans, so it’s probably not the same thing. Still, pretty scary timing @MartinTallman
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@MartinTallman Absolutely. My friend's dog had the same problem, and it cost hundreds of thousands of dollars to cure it. Pneumonia in dogs is a very serious condition.
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@beatalleukemia @ASH_hematology @KellyLBolton Agree. BTW the Presidential Symposium at #ASH2021 focused on targeting P53 mutant hematologic malignancies. Needless to say it remains a major area of unmet need.
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12 days of ASHmas Day 2 post : #ASH25 plenaries are always a big deal . This @ASH_hematology I’m excited about 2 studies- 1st one by the amazing @KellyLBolton lab on a huge challenge facing all cancer types - TP53 mutant disease!
CDK4/6 inhibition mitigates chemotherapy-induced expansion of TP53-mutant clonal hematopoiesis.
2nd study post tomorrow!

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Emanuel Feuermann b otd 1902, child prodigy, virtuoso cellist, gone too early at age 39. @StevenIsserlis

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@JeffStorobinsky @JReinerMD Very touching indeed, Jon.
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.@JReinerMD with a touching eulogy for his patient and friend, former Vice President Dick Cheney
11.19.25 1130 am ET
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@MSKCancerCenter @theNAMedicine Wonderful news! So well deserved. You’re one of a kind Omar! Congratulations! @AbdelWahablab
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We're excited to share that Dr. Omar Abdel-Wahab, a leukemia specialist at Memorial Sloan Kettering Cancer Center (MSK) and Chair of the Molecular Pharmacology Program at Sloan Kettering Institute (SKI), has been elected to the @theNAMedicine (NAM).
NAM elects members each year who have demonstrated exceptional professional achievement and commitment within the National Academies. As a pioneering physician-scientist, Dr. Abdel-Wahab has made significant contributions to uncovering the genetic causes of blood cancers and translating these discoveries into therapeutic advances.
With Dr. Abdel-Wahab’s appointment, a total of 28 MSK faculty members have been conferred with this recognition. Congratulations, Dr. Abdel-Wahab!
bit.ly/4qm0Ibh

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@MikkaelSekeres @ASH_hematology @SylvesterCancer @UMiamiHealth Congratulations to Allison, Adam and @MikkaelSekeres! This is wonderful news for @ASH_hematology!
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Honored and humbled to serve @ASH_hematology and hematologists worldwide as Councillor!.🩸🙏🩸
@SylvesterCancer @UMiamiHealth
ASH@ASH_hematology
ASH welcomes Alison Loren, MD, MSCE, as vice president, and Adam Cuker, MD, MS & Mikkael Sekeres, MD, MS as councillors. These leaders bring clinical, research, and advocacy expertise to fight for hematology. 🔗 ow.ly/VcE350XbOtE
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@MartinTallman @visitnorway @lofotenlinks I really appreciate the beautiful views in these photos. I think you'd make a great photographer because of how well you capture each shot. lol
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Summer vacation in Scandinavia is simply stunning. Here in the Lofoten Islands in Northern Norway. Even the sea eagle was likely impressed enjoying the view. @visitnorway @lofotenlinks




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@SiennavaleVale @visitnorway @lofotenlinks the picturesque scenery (the famous cinnamon rolls in A were a close second!)
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@MartinTallman @visitnorway @lofotenlinks I went there once and it was totally amazing! The Lofoten Islands are truly breathtaking and it’s easy to see why even the sea eagle was impressed. What’s been the most memorable experience for you on this trip?
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