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Don't Rush! #Breastpath case #40. 57 yo F with slow-growing mass. Outside biopsy called PASH, but went for excision due to growth. What is your differential and why? Answer Friday!! BCM_PathRes Penn Path & Lab Medicine Loyola Pathology & Laboratory Medicine A. Polónia Olaleke Folaranmi Liza Quintana, MD

Without stains - name this lymphoma

55/F arm lesion . Is it #tooclosetodiagnose?

“Pen Test” confirming true psammoma body (PB) as opposed to thick colloid (or mucin). Gentle pressure on the cover slip with the tip of a pen while looking at the fragment under the scope will radially fracture a true PB (Thyroid, FNA, PTC). Same fragment, before/after the test.

Biopsies of a nasal cavity mass from 40 year old. Unusual case that was eventually diagnosed on the resection specimen. Not my area of expertise, but was sent as possible lymphoma. Differentials and how would you approach this? #pathology #ENTpath

Liver metastasis in adult. Diagnosis? AE1/AE3 and Ki67 in next tweet. Can you tell the origin of the tumour? #pathology

1. Organ 2. Dx?

Patient with unilateral hearing loss and a mass in the middle ear. Schwannoma is suspected. Biopsy is shown. Short thread follows...

For pathology residents stressing out about fellowship applications (or which subspecialty to pursue), this talk (and associated book) might be helpful... #UMichPath #pathology ted.com/talks/david_ep…

👉71 YO male with urinary bladder mass. [A] is section from the mass. [B] was an incidental finding among the tumor. [C] demonstrates IHC done in that area. PAX8 was negative. What is the diagnosis as seen in A? What is B? Courtesy SMILEY GEORGE #PathTwitter #GUpath

40F, last menstrual period 15 days ago, history of abnormal pap. What is your interpretation? A) Benign endometrial cells B) AGC, endometrial C) AGC, endocervical D) HSIL #CytoPath #GynPath #PathTwitter #Pathology 🖼️bethesda.soc.wisc.edu/index.htm

Hi pathology friends! Consult: Thoracic tumor. Exactly all of the information available to us. TTF-1 and p40 negative. What’s next? 🤔 #NatPathPuzzler #PulmPath PPS

#breastpath Core biopsy done for calcifications. how should we sign out?

Thank you all for taking part in the case I posted last Friday. I chose one of the trickier fields to share with you, because of its educational value. The additional images provide more insight into the diagnosis. Let's go over the answers 1 by 1🧵 #breastpath #PathTwitter

An often-forgotten figure in the history of chemotherapy is Yellapragada Subbarow, the Indian chemist who discovered aminopterin, a folic acid antagonist. Aminopterin became one of the first chemotherapy agents used by Sidney Farber in the 1940s to induce remission in children

Leg, adult #BSTpath #Dermpath #Pathtwitter #pathresidents

Part 1 of 2: Voided urine, interpretation? A) Negative for high grade B) Atypical urothelial cells #GUPath #PathTwitter #CytoPath #Pathology

Let’s enjoy this cutie which pops up often on RISE and board exams, but not so frequently under the microscope! Once you see it, you’ll never forget it! A beautiful case of Sex Cord Tumor with Annular Tubules (SCTAT): • Positive for Calretinin, Inhibin, and WT-1 •

Breast-Challenges in diagnosis Case diagnosed as invasive lobular carcinoma due to negativity for ecadherin This lesion was also triple negative and CK negative Patient had history of plasma cell neoplasm Lambda stains were positive Final diagnosis: metastasis of a plasma cell

Any mitosis in these small blue cells? 👀 What is your diagnosis on this adult #kidney tumor? #OnePicDx Answer in comment👇👇👇#GUPath