Mario Prieto MD PhD

Surgical pathologist at @Hospital_FJD.
Special interest in #gynpath & #dermpath mainly, and #hemepath #breastpath #pathology #Molpath

[Mario Prieto MD PhD @dr_MPrieto]

Delighted to start a new professional project at @Hospital_FJD with a great team of very professional colleagues! 🎉

[Histopathology @Histo_Journal]

Continuing the story of IgG4 disease, here is a study by a group of eminent GI pathologists that explores the role of IgG4 in chronic oesophagitis with ulceration and invites us to recognise a new entity. #openaccess #GIpath https://t.co/b7IYRCKaWZ

[Arch Pathol Lab Med @ArchivesPath]

How well do genetic alterations in CD274 (PD-L1) correlate with PD-L1 protein expression in melanoma? Find out more here 👉 https://t.co/gSLJHVBHT1

#CAP #Archives #Pathology

[Dr. Arkadip MD @pathognosis22]

PDL1 IHC scoring guideline
#PD1 #PDL1 #CTLA4 #HN #GEJ #NSCLC #TNBC #ASCO #IASLC #NCCN #FDA #WHO #NEET #NEETSS

[International Society of Gynecologic Pathologists @ISGynP]

Announcing a free @ISGynP sponsored live virtual slide session on June 11 @ 12 noon US ET by Dr. Barroeta Lastra - "Diagnostic Challenges in Ovarian Mucinous Lesions". Register now @ https://t.co/uIM5YcRQ6l
#gynpath #gynaepath #PathTwitter

[Dr. Arkadip MD @pathognosis22]

Daily reporting companion #gynepath (KINDLY ZZOOOMMM INN !!!) #pathology #histopath #NEET #NEETSS #pathognosis

[Dr Rupam Manna MD @DrRupamOncology]

🔬 TCGA Molecular Classification of Endometrial Cancer – Updated & High-Yield Summary (2026)
The 2013 TCGA classification revolutionized endometrial cancer management by dividing tumors into 4 molecular subgroups with major prognostic & therapeutic implications:
✅ POLE-ultramutated → Excellent prognosis
✅ MMRd/MSI-H → Immunotherapy benefit
✅ p53-abnormal → Aggressive, worst prognosis
✅ NSMP → Most common, clinicopathologically guided
Fully aligned with latest ESGO-ESTRO-ESP guidelines. Essential for risk stratification, treatment de-escalation, and precision oncology.
Save this infographic 👇 for quick revision & clinical reference!
#GynOnc #EndometrialCancer #TCGA #MolecularOncology #MedEd #Oncology

[Dr. Arkadip MD @pathognosis22]

A short basic note on ovarian pathology #reporting companion #FGT #histopath #gynaepath #gynae #histopathology #NEETSS #NEET #pathology #pathognosis

[Dr. Arkadip MD @pathognosis22]

Soft tissue tumor pattern based approach #BST #NEETSS #NEET #pathology #pathognosis #histopath #histopathology #soft_tissue

[Sanjay Mukhopadhyay @smlungpathguy]

@MaiElzieny @parthisandy 20.
Two fungal hyphae you might see in the lung are Aspergillus (green circle, more common) and Mucor (red circle, less conmon). Aspergillus has septa and branches at acute angles, Mucor has few or no septa and has more irregular shapes.

Not always easy to tell them apart!

[Human Pathology @Human_Pathology]

New in #HumPathol: Histomorphologic Analysis and Clinical Correlation of Atypical Apocrine Lesions in Breast Pathology. https://t.co/3qO1R87QgN #pathology #PathTwitter #PathX #breastpath

[Eman Magdy @EmanMagdy91D]

Adenomatoid tumor of the uterus
Pathology

#pathology

[Dr. Arkadip MD @pathognosis22]

Whipple pancreaticoduodenectomy
#Grossing #whipple #GIT #CAP #TNM #rcpath #pathognosis #pathology

[International Society of Gynecologic Pathologists @ISGynP]

Announcing a free @ISGynP sponsored live virtual slide session on May 14 @ 12 noon US ET by Dr. Midha - "The morphology-molecular gap in endometrial carcinoma : ambiguous histologies and challenging cases". Register now @ https://t.co/uIM5YcSnVT
#gynpath #gynaepath #PathTwitter

[Charlie Herndon @DrCycloPath]

✅ Sertoli Cell Tumor 🎯🔬
• Composed of Sertoli cells arranged in hollow or solid tubules and cords
• Features a variable, sometimes exuberant, sclerotic or myxoid stroma
• Driven by CTNNB1 gene mutations in 60–70% of cases
• Nuclear beta-catenin IHC is a highly characteristic diagnostic finding reflecting this mutation

[Dr. Arkadip MD @pathognosis22]

Overview of larynx grossing
#larynx #Grossing #CAP #rcpath #pathology #pathognosis

[Dr. Arkadip MD @pathognosis22]

Continuing with #Grossing series, here we start GIT with #Stomach #CAP #rcpath #TNM #pathology #pathognosis

[Alireza Salem @AlirezaSalem2]

🔬Rosen Triad crashes your biopsy. All three besties showing up together:
Tubular carcinoma: fancy well-differentiated
LCIS: not invasive but still problematic
Columnar cell change: just showed up for vibes
#breastpath #pathX #pathTweeter @ColumbiaPath @ColumbiaPathRes @TheISBP

[Dr. Arkadip MD @pathognosis22]

Some brief notes on #CAP and #rcpath recommendations of #testicular tumors #Grossing #pathology #pathognosis

[Eman Magdy @EmanMagdy91D]

Superficial Acral Fibromyxoma
Pathology

#pathology

[Janira Navarro @Janiranavarro]

Neuroendocrine tumors of the breast
WHO 6th edition (beta version online)

1. Primary neuroendocrine tumors (grade 1 or 2)
2. Primary neuroendocrine carcinomas: Small cell NEC is only recognized.

***Large cell neuroendocrine carcinoma is no longer recognized as a separate breast entity and should be reclasified as IBC NST with neuroendocrine differentiation***

Dr. Tan #USCAP2026 #pathology #PathX #PathTwitter #everydaybreastpath