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katcollmd.bsky.social
#slidearchiveseries #macrovsmicro
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#macrovsmicro gray-tan to red-brown mass involving adrenal gland, residual adrenal gland with yellow-orange cortex #gupath #pathsky

#slidearchivenseries urothelial carcinoma, plasmacytoid variant #gupath #pathsky πŸ“Έ cystectomy after TURBT, irregular area of ulceration on bladder wall with no distinct mass, submitted entirely πŸ”¬deeply infiltrating, discohesive small clusters and single tumor cells

#slidearchivenseries urothelial carcinoma, plasmacytoid variant πŸ“Έ cystectomy after TURBT, area of mucosal puckering/ulceration with no distinct mass, submitted entirely πŸ₯· sneaky tumor cells can invade as single cells, often deeply infiltrative with minimal stromal reaction #gupath #pathsky

Check out our Current Issue!! Figure from "Claudin 18.2 Immunohistochemistry Expression in Gastric Cancer: A Systematic Review” by Lop Gros, et al. πŸ”— Read the full article here: journals.lww.com/appliedimmun...

chromophobe renal cell carcinoma showing its true colors! #gupath #kidneytumor #pathsky #pathoutpic 🎨 collodial iron special stain πŸ”΅πŸ’₯

#macrovsmicro partial nephrectomy, variegated white-tan to yellow-brown mass #gupath

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

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

In #GUPATH we talk about comedo necrosis in high grade prostate cancer being associated with intraductal spread - but not always - this is a lymph node metastasis, so no intraductal spread here!

Follow us to stay connected and up to date! #pathsky @katcollmd.bsky.social Where to find us: ➑️ Website: journals.lww.com/appliedimmun... ➑️ Twitter: x.com/aimmjournal  ➑️ Instagram: instagram.com/aimmjournal ➑️ Bluesky: bsky.app/profile/aimm...

#PathSky 30F with shoulder mass. Nice example of low-grade fibromyxoid sarcoma, with heavily collagenized areas and a very abrupt transition to more cellular nodules with a whorling pattern and a well-developed vasculature. MUC4 IHC is confirmatory. This case has another helpful H+E feature (below)

🚨 #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...

#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 πŸ§ͺ AFP 3.8, HCG 2.5

#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

πŸ“’ Exciting news! @intsocuropath.bsky.social and @GU_Path_Society are hosting an Expert Consultation Conference on IDC-P during #USCAP2025! πŸ—“ Saturday, March 22, 2025 ⏰ 1-5 PM πŸ“ Boston (in-person, free for members) πŸ”— Register: www.eventbrite.com/e/expert-con...

Membranous Staining of CD10 Is Related to Steatosis Changes in Hepatocellular Carcinoma: An Investigation of CD10 Stainning in Hepatocellular Carcinoma, Focal Nodular Hyperplasia, and Intrahepatic Cholangiocarcinoma journals.lww.com/appliedimmun...

The Prevention of Fatal Tauopathy in a Mouse Model of Alzheimer Disease by Blocking BCL2 journals.lww.com/appliedimmun...

Claudin 18.2 Immunohistochemistry Expression in Gastric Cancer: A Systematic Review journals.lww.com/appliedimmun...

Immunohistochemical Expression of PAXο»Ώ8 in Central Nervous System Hemangioblastomas: A Potential Diagnostic Pitfall for Neuropathologists journals.lww.com/appliedimmun...

Changes in HER2 Amplification Status for Breast Cancer Patients After Immunohistochemistry Directed In Situ Hybridization journals.lww.com/appliedimmun...

TP53 Alterations Are an Independent Adverse Prognostic Indicator in Pseudomyxoma Peritonei of Appendiceal Origin Following Cytoreductive Surgery and Intraperitoneal Chemotherapy journals.lww.com/appliedimmun...

Overexpression of MAGE-A2 is Related to the Malignant Degree and Progression of Disease in Patients With Clear Cell Renal Cell Carcinoma journals.lww.com/appliedimmun...

The Relationship of PRAME Expression with Clinicopathologic Parameters and Immunologic Markers in Melanomas: In Silico Analysis journals.lww.com/appliedimmun...

Smooth Muscle Myosin Heavy Chain Expression in Nodal and Extranodal Follicular Dendritic Cell Sarcoma journals.lww.com/appliedimmun...

talk about an udder-ly unexpected finding πŸ„ #pathpuns #MooOlogy

#slidearchiveseries embryonal carcinoma #gupath #pathsky πŸ”¬ pseudoendodermal sinus-like 🎨 OCT4 πŸ“‘ pubmed.ncbi.nlm.nih.gov/29129333/ πŸ₯ history of epididymo-orchitis; enlarged testicle with a heterogeneous mass-like area (increasing in size), serum tumor markers not known

#macrovsmicro radical orchiectomy, gray-white to red-brown, heterogeneous, focally hemorrhagic and focally degenerative mass #gupath #pathsky #testicularcancer

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

#PathSky 43F with a solitary lung mass. Relatively circumscribed, nests and interesting micropapillae of lightly eosinophilic epithelioid cells. Negative for everything except TFE3. Dx?

Need an Update on Urological Pathology? Please join the International Academy of Pathology (Singapore Division) & International Society of Urological Pathology (SG-IAP/ISUP) Joint Symposium – Advances in Urological Pathology. πŸ”— Register (free): QR code in program: acrobat.adobe.com/id/urn:aaid:...

#PathSky Slowly growing superficial leg mass, 38M. Well-circumscribed, phleboliths, thrombosed vessels, cellular spindle cell areas, cavernous vascular channels. Dx?

53 yo F, bladder mass. Bladder adenocarcinoma is far less common than urothelial. Arises in the setting of cystitis glandularis with intestinal metaplasia, as urachal carcinoma at the bladder dome or may represent local extension, particularly from a colorectal primary. #PathSky

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

πŸ“’ 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 πŸ”— journals.lww.com/appliedimmun...

#slidearchiveseries nephrogenic adenoma #gupath #pathsky #pathoutpic πŸ₯ prior urothelial injury (surgery, calculi, trauma) sites: bladder > urethra > ureter πŸ”¬ metaplastic lesion, multiple morphological patterns 🎨 PAX8, AMACR, GATA3 (40%), PSA (weak) (+) ⚠️ exclude prostate & bladder ca

#slidearchiveseries urothelial carcinoma, micropapillary subtype #gupath #pathsky #pathoutpic ☝🏼distinguish from retraction artifact βœ… multiple small nests floating within single lacunae βœ… back-to-back lacunae βœ… presence of ring formations

#slidearchiveseries urothelial carcinoma with extensive squamous differentiation #gupath #pathsky #pathoutpic ☝🏼 identifiable urothelial component (may only be carcinoma in situ) ✌🏼 recommended to report percentage of squamous component

#slidearchiveseries prostatic adenocarcinoma with mucinous component #gupath #pathsky βœ… prognosis similar to non-mucinous cancers of similar Gleason score βœ… subtract mucin, grade based on underlying architecture βœ… mucin present (≀25 πŸ†š >25%)Β  βœ… final classification on resection

πŸ‘©πŸ»β€πŸ’» #readinglist #pathreads πŸ“Š Inconsistent examination in post-NACT cystectomies with no gross lesion πŸ—³οΈ Majority supports standardized protocols #gupath #pathsky πŸ“„ academic.oup.com/ajcp/article...

🚨 #publicationalert #gupath Our study shows Sertoliform cystadenomas, reclassified as Sertoli cell tumors NOS in the latest WHO, lack key Sertoli cell tumor markers, suggesting they are distinct. onlinelibrary.wiley.com/doi/10.1111/...

🚨 ISUP Presents..... πŸ”¬ Arndt Hartmann on "Role of uropathologist in hereditary urologic tumors" πŸ“… 25 February 2025 at 12pm EST via Zoom Register here: us06web.zoom.us/webinar/regi...

#PathSky 76M with a testicular mass. The outside was quite convinced this was a germ cell tumor with ITGCN, but it was resolutely negative for germ cell markers, and a broad panel of other markers. What to do next? NGS? Methylation? NGS + methylation?

Helpful tips from a 25-year Annual Meeting veteran - great for everyone, not just people new to the meeting! @rovingatuscap.bsky.social #USCAP2025 youtu.be/KTkgw1ds4o8

β€œThose who would hold your early mistakes against you are the folks whose opinions you should ignore anyway.” - Joan Westenburg