Katrina Collins || Pathologist
@katcollmd.bsky.social
📤 194
📥 132
📝 91
#slidearchiveseries
#macrovsmicro
#GISlideBar
pinned post!
📢 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...
over 1 year ago
0
6
2
reposted by
Katrina Collins || Pathologist
International Society of Urological Pathology
about 1 month ago
🚨 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...
0
2
3
#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...
about 2 months ago
0
3
0
#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/
about 2 months ago
0
2
0
#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
about 2 months ago
0
2
0
Immunohistochemistry New Instrument Validations: Why Your Validation Plan Matters
journals.lww.com/appliedimmun...
loading . . .
https://journals.lww.com/appliedimmunohist/abstract/9900/immunohistochemistry_new_instrument_validations_.268.aspx
4 months ago
0
0
0
🆕 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
6 months ago
0
1
0
reposted by
Katrina Collins || Pathologist
International Society of Urological Pathology
7 months ago
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! 🇦🇺
0
2
1
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/...
10 months ago
1
1
0
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
10 months ago
Investigating Biomarkers in Primary Tumors and Lymph Node Metastases in Tongue Squamous Cell Carcinoma: An Immunohistochemical Perspective
journals.lww.com/appliedimmun...
loading . . .
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...
https://journals.lww.com/appliedimmunohist/abstract/9900/investigating_biomarkers_in_primary_tumors_and.240.aspx
0
3
2
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
10 months ago
Distinct levels of DDIT3 Amplification in Dedifferentiated Liposarcoma Developing After DDIT3 Rearrangement in Myxoid Liposarcoma
journals.lww.com/appliedimmun...
loading . . .
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...
https://journals.lww.com/appliedimmunohist/abstract/9900/distinct_levels_of_ddit3_amplification_in.239.aspx
0
3
2
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
10 months ago
STAT6 Can Be Used in the Diagnosis of Hodgkin Lymphoma; There Are Differences in Expression Among Subtypes
journals.lww.com/appliedimmun...
loading . . .
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...
https://journals.lww.com/appliedimmunohist/abstract/9900/stat6_can_be_used_in_the_diagnosis_of_hodgkin.237.aspx
0
4
2
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
10 months ago
Immunohistochemical Study on Programmed Death Ligand 1 (PD-L1) in Breast Carcinoma and Its Correlation With the Clinicopathological Parameters
journals.lww.com/appliedimmun...
loading . . .
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 ...
https://journals.lww.com/appliedimmunohist/abstract/9900/immunohistochemical_study_on_programmed_death.238.aspx
0
2
1
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
10 months ago
🚀 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...
0
1
2
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
10 months ago
EWSR1::NFATC2 Rearranged Sarcoma Distinct Clinicopathological Features From a Series of 5 Rare Cases
journals.lww.com/appliedimmun...
loading . . .
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...
https://journals.lww.com/appliedimmunohist/abstract/9900/ewsr1__nfatc2_rearranged_sarcoma__distinct.236.aspx
0
1
1
reposted by
Katrina Collins || Pathologist
International Society of Urological Pathology
10 months ago
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
0
1
1
reposted by
Katrina Collins || Pathologist
International Society of Urological Pathology
10 months ago
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.
loading . . .
International Society of Urological Pathology – ISUP
https://isupweb.net
0
1
1
📚
#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!!
10 months ago
0
0
0
#slidearchiveseries
urothelial carcinoma in situ colonizing prostatic urethra
#gupath
11 months ago
0
4
1
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
11 months ago
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...
0
2
1
#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...
11 months ago
0
0
0
#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
12 months ago
0
1
0
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
12 months ago
The Expression and Clinical Features of 8 Immunohistochemistry Markers in Adrenal Cortical Adenomas and Pheochromocytomas
journals.lww.com/appliedimmun...
loading . . .
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...
https://journals.lww.com/appliedimmunohist/abstract/9900/the_expression_and_clinical_features_of_8.232.aspx
0
1
1
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
12 months ago
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%)
add a skeleton here at some point
0
4
2
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/...
12 months ago
0
2
2
#macrovsmicro
total nephrectomy, tan to red, nodular, heterogeneous, well-delineated, focally hemorrhagic/necrotic mass
#gupath
#pathsky
#pathoutpic
#kidneytumor
12 months ago
1
4
0
reposted by
Katrina Collins || Pathologist
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
about 1 year ago
0
1
2
reposted by
Katrina Collins || Pathologist
Amy Engevik
12 months ago
Liver immunostaining for this
#FluorescenceFriday
0
29
5
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
about 1 year ago
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
add a skeleton here at some point
0
4
2
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
about 1 year ago
Expression of Hippo Pathway Molecules in Distal Bile Duct Cancer
journals.lww.com/appliedimmun...
loading . . .
Expression of Hippo Pathway Molecules in Distal Bile Duct... : Applied Immunohistochemistry & Molecular Morphology
) are primary Hippo pathway components. We evaluated LATS1/2, YAP, and TEAD4 expression and their correlation with clinicopathological behavior and prognostic significance in 67 distal bile duct cance...
https://journals.lww.com/appliedimmunohist/abstract/9900/expression_of_hippo_pathway_molecules_in_distal.230.aspx
0
1
1
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
12 months ago
Just published! Check out this latest article! 🔵 PD-L1 expression showed high concordance between cores and full slides. 🔵 CD8+ T cell and CD68+ macrophage densities varied; cores underrepresented immune infiltrates.
@fabiotavora.bsky.social
#IHCpath
#lungcancer
add a skeleton here at some point
0
1
1
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
about 1 year ago
Evaluation of Diagnostic Accuracy of Immunohistochemical Markers of SATB2 and Villin in Differential Diagnosis of Ovarian and Gastrointestinal Mucinous Carcinoma
journals.lww.com/appliedimmun...
loading . . .
Evaluation of Diagnostic Accuracy of Immunohistochemical... : Applied Immunohistochemistry & Molecular Morphology
ents with mucinous adenocarcinomas—31 lower gastrointestinal (GI), 28 ovarian, and 12 cases of pseudomyxoma peritonei. Immunohistochemistry for SATB2 and villin was performed on ovarian and GI tumor s...
https://journals.lww.com/appliedimmunohist/abstract/9900/evaluation_of_diagnostic_accuracy_of.227.aspx
0
2
1
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
about 1 year ago
The Value of Routine Reflex In Situ Hybridization Testing in Low-grade Tubule-forming Invasive Breast Cancers With Equivocal HER2 Immunohistochemistry - A Reappraisal of the ASCO/CAP Guidelines
journals.lww.com/appliedimmun...
loading . . .
The Value of Routine Reflex In Situ Hybridization Testing... : Applied Immunohistochemistry & Molecular Morphology
emistry (IHC). While this recommendation mainly addresses aggressive tumor types such as micropapillary carcinoma, it is applied to low-grade, tubule-forming IBCs unlikely to show HER2 amplification. ...
https://journals.lww.com/appliedimmunohist/abstract/9900/the_value_of_routine_reflex_in_situ_hybridization.229.aspx
0
3
3
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
about 1 year ago
CD140b (PDGFRB) Expression in Atypical Fibroxanthoma/Pleomorphic Dermal Sarcoma and its Cutaneous Neoplastic Mimics
journals.lww.com/appliedimmun...
loading . . .
CD140b (PDGFRB) Expression in Atypical... : Applied Immunohistochemistry & Molecular Morphology
cing analysis revealed high-level PDGFRA/B gene expression and suggested PDGFRB immunohistochemistry as a “lineage specific” marker for PDS. To evaluate the potential diagnostic utility of PDGFRB stat...
https://journals.lww.com/appliedimmunohist/abstract/9900/cd140b__pdgfrb__expression_in_atypical.228.aspx
0
1
1
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
about 1 year ago
0
1
2
#slidearchiveseries
clear cell renal cell carcinoma with rhabdoid differentiation
#gupath
🔬 large eccentric nuclei with prominent nucleoli, abundant eosinophilic cytoplasm, globular eosinophilic intracytoplasmic inclusions
about 1 year ago
0
2
0
reposted by
Katrina Collins || Pathologist
Brad Stulberg
about 1 year ago
For some people work is just a job. You do it, you leave it, you live your life. For other people work is craft and mastery—it’s a large part of your identity and a big source of fulfillment Both are totally fine.
0
11
2
reposted by
Katrina Collins || Pathologist
David Berman
about 1 year ago
Laboratory Investigation seeks a Social Media Editor. Are you an MD or PhD with expertise in basic, translational, or anatomic pathology who has experience creating social media posts?
@rovingatuscap.bsky.social
@uscap.org
@anirbanmaitra.bsky.social
@katcollmd.bsky.social
Link in Comments
1
6
3
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
about 1 year ago
0
3
1
reposted by
Katrina Collins || Pathologist
AndrewFolpe
about 1 year ago
#PathSky
45 with a forearm skin tumor. Highly cellular, monomorphic spindle cell tumor with a “packeted” pattern and deep, nodular lymphoid aggregates.
2
9
6
#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/
about 1 year ago
0
0
0
#openaccess
for 50 days to our article! Click on this link before June 17, 2025 to read and/or download!
#gupath
👉🏻
authors.elsevier.com/c/1k-wWKZx3jmow
add a skeleton here at some point
about 1 year ago
0
0
0
reposted by
Katrina Collins || Pathologist
Applied Immunohistochemistry and Molecular Morphology
over 1 year ago
Follow us to stay connected and up to date!
#pathsky
@katcollmd.bsky.social
Where to find us: ➡️ Website:
journals.lww.com/appliedimmun...
➡️ Twitter:
x.com/aimmjournal
➡️ Instagram:
instagram.com/aimmjournal
➡️ Bluesky:
bsky.app/profile/aimm...
0
0
1
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/
about 1 year ago
0
3
1
reposted by
Katrina Collins || Pathologist
AndrewFolpe
about 1 year ago
#PathSky
55F, large retroperitoneal mass. Outside pathologist quite reasonably thought of WDL, but MDM2 FISH was negative. Any other ideas?
1
12
5
reposted by
Katrina Collins || Pathologist
International Society of Urological Pathology
about 1 year ago
🌟POSITION OPEN:
#ISUP
International Councillor Europe 🌟 📅 Submit by April 27, 2025 We invite interested members to apply for this role. Please submit your CV and a personal statement to
[email protected]
.
0
2
2
#publicationalert
🚨 Isolated nodal disease post-NAC linked to higher recurrence, not worse survival after cystectomy
#gupath
🔗
pubmed.ncbi.nlm.nih.gov/40250715/
loading . . .
Differential Outcomes in Bladder Cancer After Neoadjuvant Chemotherapy: An International Multi-Institutional Study Comparing Isolated Nodal Disease versus Persistent Muscle-Invasive Disease - PubMed
Patients with isolated lymph node disease, despite complete local response after NAC, demonstrate higher recurrence risk compared to those with persistent muscle-invasive disease, although this does n...
https://pubmed.ncbi.nlm.nih.gov/40250715/
about 1 year ago
0
1
1
#publicationalert
Rare case of EBV+ classic Hodgkin lymphoma in Crohn disease highlights a potential link to anti-TNF-α therapy
#gipath
#IBD
#hemepath
#pathsky
🔗
dx.doi.org/10.1002/jgh3...
loading . . .
Primary Gastrointestinal EBV‐Associated Classical Hodgkin Lymphoma in Crohn Disease on Anti‐TNF‐α Therapy: A Rare Association
Background Lymphomas present a significant challenge in the field of gastrointestinal diseases, often being mistaken for other gastrointestinal tumors or inflammatory bowel disease conditions, causi...
http://dx.doi.org/10.1002/jgh3.70154
about 1 year ago
0
1
0
Load more
feeds!
log in