iiinova — where your digital self keeps evolving

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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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 ▶️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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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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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 · 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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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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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 · 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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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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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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Katrina Collins || Pathologist @katcollmd.bsky.social · 26/05/2025

#slidearchiveseries clear cell renal cell carcinoma with rhabdoid differentiation #gupath 🔬 large eccentric nuclei with prominent nucleoli, abundant eosinophilic cytoplasm, globular eosinophilic intracytoplasmic inclusions

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Katrina Collins || Pathologist @katcollmd.bsky.social · 16/05/2025

Honored to host Dr. Mukhopadhyay @smlungpathguy.bsky.social at this week's Grand Rounds. Grateful for the opportunity to learn from one of the best—his depth of knowledge and gift for teaching truly shine through #lungpath

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Katrina Collins || Pathologist @katcollmd.bsky.social · 07/05/2025

#publicationalert 🚨 α-SMA loss in the inner circular layer of jejunal muscle was common in both motility disorder cases and controls, making it an unreliable marker of dysfunction #gipath #pathsky 🔗 pubmed.ncbi.nlm.nih.gov/40328644/

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Katrina Collins || Pathologist @katcollmd.bsky.social · 29/04/2025

Thrilled to share USCAP’s U²P² program — supporting pathologists from under-resourced countries to train at leading institutions! Fully funded by the @uscap.org, it’s a bold step toward global collaboration and education in pathology! #pathtwitter #U2P2 🔗 foundation.uscap.org/u2p2/

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Katrina Collins || Pathologist @katcollmd.bsky.social · 31/03/2025

🚨 #publicationalert #gupath Our study reveals somatic-type malignancies in GCTs may derive from YST, with epigenetic and signaling alterations pathsocjournals.onlinelibrary.wiley.com/doi/full/10....

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Katrina Collins || Pathologist @katcollmd.bsky.social · 31/03/2025

🚨 #publicationalert #gupath MEIS1::NCOA1 primitive renal sarcomas resemble MEIS1::NCOA2 cases. These neoplasms mimic malignant MEST and show a spectrum from low to high grade, requiring long-term follow-up. 🔗 journals.lww.com/ajsp/abstrac...

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Katrina Collins || Pathologist @katcollmd.bsky.social · 29/03/2025

#slidearchiveseries urinary bladder, inflammatory myofibroblastic tumor #gupath #pathsky #pathoutpic 🔬 Diverse patterns: myxoid, fascicular, hyalinized 🎨 ALK IHC (diffuse cytoplasmic) in 40-60% 🧬 50-60% ALK fusions (EML4, TPM3/4, CARS, RANBP2, IGFBP5…)

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Katrina Collins || Pathologist @katcollmd.bsky.social · 29/03/2025

#slidearchiveseries urothelial carcinoma, clear cell (glycogen-rich) #gupath 🎨 IHC profile similar to conventional urothelial carcinoma (GATA3, p63) ⚠️ distinguish from metastatic CCRCC and clear cell adenocarcinoma

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Katrina Collins || Pathologist @katcollmd.bsky.social · 29/03/2025

#slidearchiveseries history of DLBCL s/p chemotherapy with residual retroperitoneal lymphadenopathy, s/p radiation therapy for bulky cauda equina leptomeningeal disease, now for management of prostate abscess #gupath #malakoplakia

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Katrina Collins || Pathologist @katcollmd.bsky.social · 10/03/2025

Happy Histotechnology Professionals Day! 🎉 Shoutout to all the histotechs who make diagnosis possible with their hard work behind the scenes. Take a moment to appreciate the histologists in your lab today! 🧫🔬 #HPD #Histotechnology #LabLife

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Katrina Collins || Pathologist @katcollmd.bsky.social · 03/03/2025

IU Pathology and IUHMG are expanding! We're recruiting a GI-focused surgical pathologist (≥5 years post-fellowship) to join our team. Additional subspecialty expertise welcome! #gipath #pathtwitter #pathX 🔗 indiana.peopleadmin.com/postings/28535

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Katrina Collins || Pathologist @katcollmd.bsky.social · 03/03/2025

IU Pathology and IUHMG are recruiting anatomic pathologists in: 🔬 Pediatric Pathology 🔬 Head & Neck Pathology 🔬 Thoracic-Pulmonary Pathology 🔬 Dermatopathology 🔬 Gastrointestinal Pathology Additional subspecialty training is welcome! 🔗 indiana.peopleadmin.com/postings/28097

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Katrina Collins || Pathologist @katcollmd.bsky.social · 01/03/2025

Completely agree—a diagnosis that can be made even at low power! 🤩 #pathsky #gupath

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Katrina Collins || Pathologist @katcollmd.bsky.social · 22/02/2025

🚨 #publicationalert #gupath We developed a deep learning-based classifier to distinguish renal oncocytoma from low-grade oncocytic tumor (LOT) in whole slide images with high accuracy. Link to our article: doi.org/10.5858/arpa...

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Katrina Collins || Pathologist @katcollmd.bsky.social · 22/02/2025

#slidearchiveseries seminoma with brisk lymphocytes, rete testis invasion, and GCNIS—classic 'fried egg' 🍳 appearance with a dash of pepper #gupath #testistumor #pathoutpic

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Katrina Collins || Pathologist @katcollmd.bsky.social · 22/02/2025

#macrovsmicro orchiectomy, tan-white, firm, homogeneous, faintly lobulated, well-delineated mass abutting the rete testis #gupath #pathsky #pathoutpic 🩺 increased testicular pain and swelling, evaluation for torsion; 3.9 cm mass on ultrasound 🧪 AFP 3.8, HCG 2.5

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Katrina Collins || Pathologist @katcollmd.bsky.social · 22/02/2025

#slidearchiveseries chromophobe carcinoma with sarcomatoid differentiation #gupath #pathsky #pathoutpic ⚠️ sarcomatoid component may overrun the epithelial component, extensive sampling may be needed to identify recognizable carcinoma

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Katrina Collins || Pathologist @katcollmd.bsky.social · 22/02/2025

#macrovsmicro radical nephrectomy, sarcomatoid components comprise sizeable areas displaying dense, tan-pink, or white areas within the tumor, typically with a firm and fleshy texture on cut surface #gupath #pathsky #kidneytumor

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Katrina Collins || Pathologist @katcollmd.bsky.social · 15/02/2025

#slidearchiveseries paraganglioma of urinary bladder #gupath #pathsky 🔬 polygonal cells with granular cytoplasm in Zellballen pattern 🎨 SYN/CG/often GATA3 (pitfall) 🧬assoc with germline SDH mutation 🤔confused with urothelial ca, granular cell tumor, melanoma

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Katrina Collins || Pathologist @katcollmd.bsky.social · 05/02/2025

📚 #readinglist #mustreads Pathologists see organs in living color, but why do they look that way? This article unpacks the pigments behind the pathology! #pathart 📖 Have you read it? If not, add it to your list!! doi.org/10.5858/arpa...

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Katrina Collins || Pathologist @katcollmd.bsky.social · 05/02/2025

📢 Exciting news! Thrilled to share I will be taking on the role of AIMM’s Social Media Editor! Grateful for this opportunity and excited to foster connections in the digital space and engage with our path community. #onlineaheadofprint #IHCpath 🔗 journals.lww.com/appliedimmun...

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Katrina Collins || Pathologist @katcollmd.bsky.social · 01/02/2025

👩🏻‍💻 #readinglist #pathreads 📊 Inconsistent examination in post-NACT cystectomies with no gross lesion 🗳️ Majority supports standardized protocols #gupath #pathsky 📄 academic.oup.com/ajcp/article...

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Katrina Collins || Pathologist @katcollmd.bsky.social · 12/01/2025

#slidearchiveseries history of radical orchiectomy with pure teratoma, serum tumor markers (post-orchiectomy): AFP 537, increased to 469, HCG 2; status post chemotherapy x 4 cycles ➡️ retroperitoneal lymph node dissection #gupath #pathsky

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Katrina Collins || Pathologist @katcollmd.bsky.social · 07/01/2025

📚 #readinglist #mustreads If you’ve felt drained trying to fix everything or keep everyone happy, you need this. Trust me, this concept will change how you show up for yourself and others in the best way possible. @melrobbins.bsky.social 📖 Have you read it? If not, add it to your list!!

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Katrina Collins || Pathologist @katcollmd.bsky.social · 27/12/2024

first completed #wooble full disclosure, all stuffing was used in the making of #pierrethepenguin @thewoobles.bsky.social

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Katrina Collins || Pathologist @katcollmd.bsky.social · 24/12/2024

closing out the year with this final case 💍 #gipath distal gastrectomy, poorly differentiated mucinous adenocarcinoma with signet ring cell features #pathsky

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Katrina Collins || Pathologist @katcollmd.bsky.social · 12/12/2024

#slidearchiveseries mixed germ cell tumor, predominantly embryonal carcinoma with smaller components of yolk sac tumor and teratoma, LVI present (additionally confirmed with ERG immunostain) #gupath #pathsky #pathoutpic

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