Grazie,Professor Antonino Zichichi!

Have you ever been amazed by the intricate design of the human heart? Before it becomes the four-chambered marvel we know, it undergoes an astonishing transformation within the first few weeks of life. Understanding this embryological process is essential.

Have a great birthday, Michael! 🎂

For pathology trainees, something easy to miss (and a good lesson to pay attention to the aspirate): child with staging marrow for rhabdomyosarcoma...can you spot it at low power? #hemepath

Gastric Xanthoma HE ▶️ CD163▶️ CK #GIpath #Pathology #PathTwitter #PathX

Tumor emboli and LVI as seen with invasive breast carcinoma, NST. #pathology #breastpath #LVI

🔬📸 Renal Medulla ~ #RenalPath #Histology #PathArt

Low-grade B-cell lymphomas may present with prominent reactive inflammatory infiltrates or coexist with autoimmune disorders ⚠️ Increased IgG4:IgG ratio? Stop and think before diagnosing IgG4-related disease. Always exclude an associated lymphoproliferative disorder What is the cause of abundant IgG4 in lymphomas?Possible explanations... 1. Non-neoplastic IgG4 cells within the tumor microenviroment 2. Monoclonal IgG4 production by lymphoma 3. Lymphoma can coexist with IgG4-related disease and other autoimmune disease Dr. Herrera Hernandez #USCAP2026 #pathology #PathX #PathTwitter

Kidney involvement by lymphoma 🔬 Autopsy series: ~1/3 of patients with lymphoma show kidney infiltration 🔬 CLL: 63–93% in autopsy series Secondary renal involvement >> primary renal lymphoma Most common hematologic neoplasms identified in medical renal biopsies: • CLL/SLL • Low-grade B-cell lymphoma with plasmacytic differentiation Dr. Herrera Hernandez #USCAP2026 #pathology #PathX #PathTwitter

Kidney biopsy: Great teaching case Severe inflammation and necrosis with abscess formation. Look carefully=you see cells with large nuclei in the mix of inflammatory cells. IHC= Positive staining for ADENOVIRUS. DX: Adenovirus-associated interstitial nephritis. 55-yr old with kidney & heart transplant, fevers, rise in serum creatinine.

Multiple itchy skin bumps on back of adult man. Diagnosis ✅ youtu.be/gnSNnie3FaA?si=IG0Z… This is a very important #dermpath pattern...What is it called? What diseases have this pattern? What are the arrows pointing to? Answers: kikoxp.com/posts/13049 #pathology #pathologists #pathTwitter #dermatology #dermatologia #dermtwitter

التهاب المعدة المزمن النشط المرتبط بالملوية البوابية Helicobacter pylori-associated active chronic gastritis مرادف شائع: الجرثومة الحلزونية أو البكتيريا المعدية الحلزونية #الأمراض_بالعربي #path_in_arabic #pathology

CC390. FNA of a malar nodule (<1 cm) in an old man. Two more images below #cytopath @kriyer68 @kis_lorand @DrMarkOng @edusqo @MAHoureih @AnupamaArya12 @premcharles

Can you make the diagnosis from one pic, or is it #TooCloseToDiagnose? Digital slide 🔬 kikoxp.com/posts/17751 Answer ✅ youtube.com/watch?v=obIibd_X… #pathology #pathologists #pathTwitter #BSTpath #dermpath #dermatology #dermatologia #dermtwitter

61 year old female, breast lesion.

35 yo M. Skin excision. YOU tell ME the history! (don't want to give away answer too easily!) Answer ✅: youtube.com/watch?v=TYHeQPzp… WSI digital slide: kikoxp.com/posts/8020. #pathology #pathologists #pathTwitter #dermpath #dermatology #dermatologia #dermtwitter

Today was the last day at the VA rotation, kinda gave me bittersweet feelings especially with this 💜 in prostate biopsy 🫶🏼. Picture captured by yours truly 🤩

.@Morangobrasil 🌈

Thightly packed glands of acinar prostatic adenocarcinoma mimicking cribriform GG4...the way to tell them apart is to look at high magnification and find/exclude the surounding stroma/collagen bundles (marked with green in the last picture) #pathology #GUpath

Middle-aged female with goiter and hypothyroidism, 0.8 cm irregular whitish mass. What are your thoughts about it, what are the differential diagnoses, and what IHC would you order? #PathX Set 1:

سرطانة المعدة ذات الخلايا الحلقية الخاتمية (سرطانة قليلة التماسك) Gastric signet-ring cell poorly cohesive carcinoma #الأمراض_بالعربي #path_in_arabic #pathology