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Katrina Collins || Pathologist

@katcollmd.bsky.social
202 followers 132 following 97 posts

#slidearchiveseries #macrovsmicro #GISlideBar

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Katrina Collins || Pathologist @katcollmd.bsky.social · 31/08/2026
#openaccess for 50 days to our article! Click on this link before October 18, 2026 to read and/or download! #gupath 🔗 authors.elsevier.com/c/1nhX2AfIPxNG6
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Katrina Collins || Pathologist @katcollmd.bsky.social · 31/08/2026
#publicationalert #gupath Article out now! We characterized prostatic/periprostatic SFTs with review of the literature. Grateful to Andres Matoso and the team for their collaboration, and to the late Sambit Mohanty, whose foundational work made this study possible.
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 24/07/2026
🌍 Join leading international experts for the SEAUPS–ISUP Webinar! We look forward to seeing you online! 📅 25 Aug 2026 via Zoom
🕗 20:00 (UTC+7) | 06:00 (UTC−7)
 Register: bit.ly/SEAUPS-ISUP-...
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 16/07/2026
ISUP Presents..... 🔬 Dr. Lori A. Erickson on “Practical Adrenal Pathology” 📅 11 Aug 2026 at 1pm EST via Zoom Register here: us06web.zoom.us/webinar/regi...
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 12/05/2026
2026 ISUP Stockholm Multidisciplinary Consensus Conference on Precision Biomarker Testing in Bladder and Prostate Cancer #ISUPStockholm2026 🇸🇪 📅 12 Sept 2026, immediately preceding @ESP_Pathology #ECPCongress Register: 2026-isup-stockholm.eventbrite.com
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 09/06/2026
📢 ISUP Consensus Publications on Genitourinary Cancer Precursor Lesions Released! Congratulations to the ISUP Consensus Panel and contributing authors. Direct links to WG articles in comments below. Archived publications linked here: isupweb.net/isup-publica...
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 16/06/2026
Don’t miss out on this great topic with detailed review for the 2️⃣nd quarter of 2026 #gupath Reviewed by: Francesca Sanguedolce #ISUP Journal Club Archives: isupweb.net/journal-club FREE LINK to AJSP journal article journals.lww.com/ajsp/fulltex...
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 25/06/2026
Who missed the #gupath lecture from Dr. Bogdan Czerniak? Recorded lecture will remain available until the next monthly presenter, and then archived and available to members at isupweb.net 📺 youtu.be/7Xub9iW-m9E
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 01/07/2026
Go to isupweb.net to see more of the case! #gupath #pathsky #ISUPCOTM Authors: Marina Muratova MD), LIJ Med Ctr/North Shore Univ Hosp, Zucker Sch Med at Hofstra/Northwell, NY; Sara E. Wobker MD, MPH, Univ of North Carolina Chapel Hill, NC
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 25/06/2026
🚨 ISUP Presents..... 🔬 Dr. Seema Kaushal on “A Rosetta Stone with Missing Glyphs: Immunohistochemistry as a Molecular Surrogate” 📅 21 July 2026 at 10am EST via Zoom Register here: us06web.zoom.us/webinar/regi...
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Katrina Collins || Pathologist @katcollmd.bsky.social · 14/07/2026
New article out now #AIMMhighlights ▶️ Links alcohol use with higher TP53 mutation rates in uterine endometrioid carcinoma ▶️ TP53 and ARID1A may serve as prognostic biomarkers ▶️ Adds evidence for gene–environment interactions in endometrial cancer
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Katrina Collins || Pathologist @katcollmd.bsky.social · 14/07/2026
New article out now #AIMMhighlights ▶️ APAFIX™ (formalin-free) vs 10% formalin in human biopsies ▶️ Preserved tissue morphology & processing quality, improved nuclear detail & lymphocyte visualization ▶️ Supports APAFIX™ as a promising alternative for routine tissue fixation
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Katrina Collins || Pathologist @katcollmd.bsky.social · 14/07/2026
New article out now #AIMMhighlights ▶️CD30 and Cyclin D1: 100% positive and OCT2: 90% positive in RDD ▶️ Helpful IHC panel for distinguishing RDD from LCH, IMT & IgG4-RD
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 09/07/2026
Join the ISUP Companion Society Meeting at #CAP26 for practical updates in bladder, kidney, testicular, and prostate pathology. @pathologists.bsky.social View the agenda and add to your schedule:
events.cap.org/event/CAP26/...
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 09/07/2026
New in @Histo_Journal: Collaboration with @GU_Path_Society and @IntSocUropath, introduces a novel classification of testicular sex cord-stromal tumors, integrating morphology and molecular pathology to improve diagnostic consistency #openaccess 🔗 doi.org/10.1111/his....
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 10/07/2026
Another outstanding collaboration between @IntSocUropath and @GU_Path_Society! We hope these practical recommendations help support standardized diagnosis and reporting in daily practice. #gupath 🔗 Read the full review: www.ovid.com/10.1097/PAP....
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 06/07/2026
Check out our Current Issue!! Figure from "Exploring the Immune Microenvironment for Predicting Immunotherapy Efficacy in Epstein-Barr Virus-Associated Gastric Cancer” by Yunjoo Cho, MD, PhD, et al. 🔗 Read the full article here: journals.lww.com/appliedimmun...
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Katrina Collins || Pathologist @katcollmd.bsky.social · 29/06/2026
🆕 New publication alert 🚨 Our study highlights the morphologic diversity of FGFR3-altered urothelial carcinoma, with frequent micropapillary and squamous differentiation. #openaccess read and/or download before August 18, 2026 #gupath @labinvest.bsky.social 👉🏼 authors.elsevier.com/a/1nM4V5OfC4q7u
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 09/06/2026
Keratoameloblastoma of the Jaw Bones: Description of 2 Rare Cases and Cytokeratin Profile journals.lww.com/appliedimmun...
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 28/04/2026
🚨 ISUP Presents..... 🔬 Dr. Daniel Berney on “The Divine Comedy of Prostate Cancer: Hell, Purgatory and Paradise” @danberney.bsky.social @swobker.bsky.social 📅 5 May 2026 at 11am EST via Zoom Register here: us06web.zoom.us/webinar/regi...
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Katrina Collins || Pathologist @katcollmd.bsky.social · 09/04/2026
#GISlideBar who said amyloid is only pink? 🤔 #gipath #pathsky 🍏 Congo red gives apple-green birefringence 💙 Trichrome paints it pale blue (not brilliant blue like collagen) 🔗 www.sciencedirect.com/science/arti...
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Katrina Collins || Pathologist @katcollmd.bsky.social · 09/04/2026
#GISlideBar melanosis coli: a pigment footprint from apoptosis in the lamina propria 👣 not linked to malignancy, and oddly great at highlighting tiny polyps 👀 #gipath #pathsky 🔗 pubmed.ncbi.nlm.nih.gov/9188145/
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Katrina Collins || Pathologist @katcollmd.bsky.social · 09/04/2026
#slidearchiveseries history of radical orchiectomy with pure teratoma, serum tumor markers (post-orchiectomy): AFP 537, increased to 964 and HCG 2; status post chemotherapy x 4 cycles ➡️ retroperitoneal lymph node dissection #gupath #pathsky
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Katrina Collins || Pathologist @katcollmd.bsky.social · 12/02/2026
Immunohistochemistry New Instrument Validations: Why Your Validation Plan Matters journals.lww.com/appliedimmun...
journals.lww.com
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Katrina Collins || Pathologist @katcollmd.bsky.social · 19/12/2025
🆕 New publication alert 🚨 PC-RPLND from patients with TGCTs: key morphologic variants, diagnostic pitfalls, and clinical impact—read & share! 🔗 www.sciencedirect.com/science/arti... #pathtwitter #pathX #gupath #TGCT #IUPathology #indianapath @iupathology
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 14/11/2025
Exciting news! 🎉 Fiona Maclean joins us as the International Councillor for Australia. Welcome, Fiona — we’re delighted to have your experience and leadership representing Australia and supporting our members across the region! 🇦🇺
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Katrina Collins || Pathologist @katcollmd.bsky.social · 06/08/2025
Which matters more: talent or luck? In games like poker, luck is clear. In life, it shows up as unexpected chances or being in the right place at the right time. #readinglist #goodread 🔗 www.worldscientific.com/doi/10.1142/...
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 05/08/2025
Investigating Biomarkers in Primary Tumors and Lymph Node Metastases in Tongue Squamous Cell Carcinoma: An Immunohistochemical Perspective journals.lww.com/appliedimmun...
journals.lww.com
Investigating Biomarkers in Primary Tumors and Lymph Node... : Applied Immunohistochemistry & Molecular Morphology
tases. A total of 60 TSCC biopsy samples, 20 primary metastatic, 20 lymph node metastatic, and 20 nonmetastatic, were immunohistochemically stained to analyze MCM2, CD44, and E-cadherin expression. Ex...
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 05/08/2025
Distinct levels of DDIT3 Amplification in Dedifferentiated Liposarcoma Developing After DDIT3 Rearrangement in Myxoid Liposarcoma journals.lww.com/appliedimmun...
journals.lww.com
Distinct levels of DDIT3 Amplification in Dedifferentiated... : Applied Immunohistochemistry & Molecular Morphology
diagnostic tool for accurate diagnosis. While DDIT3 rearrangement is a known characteristic of myxoid LPS, its amplification in DDLPS has not been extensively studied. To investigate this, we evaluate...
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 05/08/2025
STAT6 Can Be Used in the Diagnosis of Hodgkin Lymphoma; There Are Differences in Expression Among Subtypes journals.lww.com/appliedimmun...
journals.lww.com
STAT6 Can Be Used in the Diagnosis of Hodgkin Lymphoma;... : Applied Immunohistochemistry & Molecular Morphology
the STAT6 (EP325) immunostain, diagnosing Hodgkin lymphoma, its staining frequency, immunolocalization, and its relationship with EBV. Sixty-eight patients representing each Hodgkin lymphoma subtype w...
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 05/08/2025
Immunohistochemical Study on Programmed Death Ligand 1 (PD-L1) in Breast Carcinoma and Its Correlation With the Clinicopathological Parameters journals.lww.com/appliedimmun...
journals.lww.com
Immunohistochemical Study on Programmed Death Ligand 1... : Applied Immunohistochemistry & Molecular Morphology
in order to maximize its therapeutic role in different clinicopathological settings. This study aimed to evaluate PD-L1 immunohistochemical expression in both tumor cells (TCs) and tumor-infiltrating ...
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 28/07/2025
🚀 Join us for the launch of our Journal Club Webinar Series! 📚 Articles #openaccess starting July 28 👨🏻‍💻 Don't miss this opportunity to explore new research with us! #AIMMjc Register 👉🏻 tinyurl.com/ycxeye84 🔗 journals.lww.com/appliedimmun... 🔗 journals.lww.com/appliedimmun...
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 28/07/2025
EWSR1::NFATC2 Rearranged Sarcoma Distinct Clinicopathological Features From a Series of 5 Rare Cases journals.lww.com/appliedimmun...
journals.lww.com
EWSR1::NFATC2 Rearranged Sarcoma: Distinct... : Applied Immunohistochemistry & Molecular Morphology
omas with EWSR1–non-ETS fusions, particularly EWSR1::NFATC2 fusion. We identified 5 cases of EWSR1::NFATC2 fusion sarcomas. There was male preponderance and all the patients had a history of trivial t...
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 31/07/2025
Join us for the 3rd Annual Euro Grawitz Dinner in Vienna! 📅 Sept 10, 2025 | 5:30 PM 🍽️ Zum weißen Rauchfangkehrer Reserve by Sept 3: www.eventbrite.com/e/1527667858... Special thanks to our local organizers making this event possible: Prof. Eva Compérat and Miss Amy Rattan
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Reposted by Katrina Collins || Pathologist
International Society of Urological Pathology @intsocuropath.bsky.social · 28/07/2025
Colleagues: the ISUP @intsocuropath.bsky.social website has been down recently while a new website was being built. New website is now available isupweb.net and in progress being expanded with additional features! An email to members was sent July 18 via mailchimp.
isupweb.net
International Society of Urological Pathology – ISUP
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Katrina Collins || Pathologist @katcollmd.bsky.social · 24/07/2025
📚 #readinglist #mustreads Perfect for those starting their careers, Fragale strikes a balance between smart and approachability. Her advice offers actionable tips that help leverage strengths to own your space. @alisonfragale 📖 Have you read it? If not, add it to your list!!
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Katrina Collins || Pathologist @katcollmd.bsky.social · 11/07/2025
#slidearchiveseries urothelial carcinoma in situ colonizing prostatic urethra #gupath
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 04/07/2025
Check out our Current Issue!! Figure from "Telomerase Immunocytochemistry in Lymphocytes From Chronic Lymphocytic Leukemia” by Sučić, et al. 🔗 Read the full article here: journals.lww.com/appliedimmun...
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Katrina Collins || Pathologist @katcollmd.bsky.social · 25/06/2025
#slidearchiveseries seminal vesicle invasion #gupath #prostatecancer 1️⃣ spreading along the ejaculatory duct 2️⃣ direct invasion at the base of the prostate or extension into peri-SV soft tissue and then into the wall of the SV 3️⃣ discontinuous metastases (rare) 🔗 doi.org/10.1038/modp...
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Katrina Collins || Pathologist @katcollmd.bsky.social · 16/06/2025
#slidearchiveseries history of nephrectomy for renal cell carcinoma, received immunotherapy with complete response, later developed upper GI bleeding from metastases to the proximal jejunum #gupath #gipath
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 15/06/2025
The Expression and Clinical Features of 8 Immunohistochemistry Markers in Adrenal Cortical Adenomas and Pheochromocytomas journals.lww.com/appliedimmun...
journals.lww.com
The Expression and Clinical Features of 8... : Applied Immunohistochemistry & Molecular Morphology
valuable insights into the diagnosis and management of adrenal tumors. We retrospectively analyzed cases of patients treated in the urology department of our hospital from April 2017 to May 2022, focu...
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 15/06/2025
Just published! Check out this latest article by @iamshreeya.bsky.social 🔬 Molecular subtyping of bladder cancer is essential—but not always feasible in low-resource settings 🧪 IHC markers GATA3, KRT20, KRT14, KRT5 used to stratify UCs ⚠️ Dual-negative had poorest survival (25%), luminal best (80%)
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Katrina Collins || Pathologist @katcollmd.bsky.social · 07/06/2025
Can you spot treatment effects in prostate cancer and distinguish secondary tumors involving the prostate? This case-based CME session covers ADT/radiation changes, rare variants, and more. Check out this session—plan on joining us at #CAP25! 🔗 events.cap.org/event/cap25/...
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Katrina Collins || Pathologist @katcollmd.bsky.social · 07/06/2025
#slidearchiveseries chromophobe renal cell carcinoma #gupath #pathsky #pathoutpic ✅ solid sheet-like architecture ✅ plant-like cell borders (vegetable cells) ✅ irregular, wrinkled nuclei (raisinoid) ✅ binucleation and perinuclear halos 🎨 CK7, CD117, Hale colloidal iron
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Katrina Collins || Pathologist @katcollmd.bsky.social · 07/06/2025
#macrovsmicro total nephrectomy, tan to red, nodular, heterogeneous, well-delineated, focally hemorrhagic/necrotic mass #gupath #pathsky #pathoutpic #kidneytumor
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Reposted by Katrina Collins || Pathologist
Katrina Collins || Pathologist @katcollmd.bsky.social · 28/05/2025
Our pathology team is walking to fight kidney disease and support the life-changing work of the @nkf-professionals.bsky.social! On June 21, we walk for all who’ve been impacted by this chronic illness. Join us or donate to help make a difference: www.kidneywalk.org/indy/IUPatho... #kidneywalk
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Reposted by Katrina Collins || Pathologist
Amy Engevik @amyengevik.bsky.social · 06/06/2025
Liver immunostaining for this #FluorescenceFriday
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Reposted by Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology @aimmjournal.bsky.social · 29/05/2025
Just published! Check out this latest article 👉🏻 HER2 amplification is rare (1.7%) in low-grade, tubule-forming breast cancers with 2+ HER2 IHC; findings suggest ISH may be unnecessary in this subset #breastpath #IHCpath #pathsky
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