This is a MALE patient with a solitary nodule on CXR

Hi #pathtwitter Sorry I have been absent, but I have moved jobs! I am now working in Perth, Australia for Pathwest and (soon for) @uwanews (as A/Prof). Will get back to posting soon, in the meantime, here is an interesting colleague's case. #GIpath #Endopath #Pathresidents

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

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

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 •

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

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

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

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

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

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 🖼️ https://t.co/3bQiVMmna6

👉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 @annsmiley78 #PathTwitter #GUpath

For pathology residents stressing out about fellowship applications (or which subspecialty to pursue), this talk (and associated book) might be helpful... #UMichPath #pathology https://t.co/LlrqeWUTYO

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

“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.

Without stains - name this lymphoma

1. Organ 2. Dx?

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

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