Nathan McGrath

Pathology resident | Interested in #CytoPath #ThoracicPath #ENTPath #Microbiology | #Coffee #Swimming | 🇲🇼 🇿🇦 Doctor with a passion for #GlobalHealth

[Nathan McGrath @Nate_path]

Some #Cytopath #Histopath correlation. The 3 components of a Wilms tumour: Blastemal, Epithelial and Blastemal #PediPath 🔬

[Nathan McGrath @Nate_path]

@Saroja_DeviG Fantastic! Your wall will be full of certificates soon 😊

[Sinchita Roy MD PhD @Sinchita_Roy]

Heading to #AMP2026 and wondering what to do before the meeting starts?
Join us at Special Programs Day for @cytopathology session, Nov 10 at 5 pm
Included with your meeting registration but you have to sign up
Maximizing #CytoPath for #MolPath 🧬
#supernatants #NGS @AMPath

[Dustin McGrew @dmcgrew]

What an absolutely unreal view of Pittsburgh this afternoon from a helicopter during the peak of the fall season! More shots to come soon! #pittsburgh

[𝗰𝗵𝗿𝗶𝘀 𝗯𝗿𝗶𝗲𝗺 @chrisbriem]

Pittsburgh

‘Nuff said

[Nathan McGrath @Nate_path]

Fantastic Article! #PathX #Nephpearls

[Sanjeev Sethi @SethiRenalPath]

Complete summary and more of IgA nephropathy using mass spectrometry.

1. Majority of IgA is IgA1.
2. Smaller amounts of IgA2 are also present.
3. Both IgA1 and IgA2 colocalize with IgG, showing that the deposits are composed of IgA1/IgG and IgA2/IgG.
4. Dominant IgG subclass is IgG1.
5. J chain that binds monomers of IgA into dimers is present in majority of cases, indicating that the IgA is mucosal derived (as circulating IgA is monomer and doesn’t have J chain)
6. Absence of PIGR indicates that IgA is not derived from secretions such as saliva, tears, etc. PIGR is a peptide in IgA (present in secretions), that prevent the breakdown of IgA by bacteria.

Taken together: IgA immune complexes in IgA nephropathy are made up of antigenic (galactose-deficient) mucosal-derived IgA and IgG.

7. Complement: Large amounts of C3 and C9 indicating alternative and terminal pathways of complement activation.
8. Minimal classical/no lectin pathway proteins.
9. Some correlation with MESTC score but bottom line= all IgA nephropathy shows lots of C3 and C9.
10. Abundant CFHR5 indicating that there is breakdown of C3 into inactive C3=iC3b.
11. Complement is a major player in the inflammatory process in IgA nephropathy.

https://t.co/06ukMk01ss

[City of Pittsburgh @Pittsburgh]

Good morning!

[Ruben A Campos @RubenACampos]

Pitt-ure perfect. #Pittsburgh

[COSECSA @cosecsa]

Free hands-on laparoscopic surgery training in Lilongwe! Join our Principles of Laparoscopic Surgery course on 28 Nov, ahead of the 26th COSECSA Scientific Conference. Limited to the first 16 applicants. Details and how to apply: https://t.co/NmzelnW6fi #COSECSA #laparoscopy

[Nathan McGrath @Nate_path]

@DrGeeONE @IHC_guy It was a Foregone conclusion- best decision ever

[UPMC Pathology Residency Program @UPMCPath]

UPMC has a far reach within pathology’s small world! PGY2 Peace Preston and PGY3 Stephanie Torres connect with alumni Dr. Katherine Killian and alumni/faculty Dr. Jennifer Picarsic at the #SPP2026 meeting. @LikeWorldPeace @BakeAndBiopsy @jpcrsc

[Bobbi Pritt, MD @ParasiteGal]

The answer to #ParasiteCaseOfTheWeek 820 is an onchocercoma due to Onchocerca volvulus! 🪱

This beautiful histology shows an adult female packed with developing microfilariae—and even a microfilaria that has escaped into the skin.

See the answer and images here 👇
https://t.co/RFQ9fxPE9Z
#Parasitology #Pathology #Microbiology #mayopath #PathBugs #CrittersOnTwitter

[NFL @NFL]

what a victory for @AaronRodgers12 and the @steelers

[Nathan McGrath @Nate_path]

@drtimbracey @suraksharaob @kriyer68 @smlungpathguy @pepeheffernan @ariella8 @MirunaPopescu13 @Histopatolomon @Saroja_DeviG @MeredithKHerman @Path4People @ColeBiehlDO @nilufer510 @TingZhaoPathdoc @ZemplenPataki @natasharekhtman @kis_lorand You know you’re a pathologist when every time you hear a dog barking you think about GIST

[Nathan McGrath @Nate_path]

What a legend! @LikeWorldPeace #PathX

[UPMC Pathology Residency Program @UPMCPath]

We are so proud of our very own @upmcpath resident Peace Preston for winning the Outstanding Poster Presentation award at the #ACG2026 @AmCollegeGastro @LikeWorldPeace

[Bobbi Pritt, MD @ParasiteGal]

The #Parasite Case 820 is up, a subcutaneous nodule in a man from Liberia. Check out the whole slide image to make your diagnosis! https://t.co/q6pG8UBlnF 🪱
Answer later this week. #mayopath #pathology #PathBugs #CrittersOnTwitter

[Dave DiCello @DaveDiCello]

Some beautiful views on the North Shore of #Pittsburgh this morning as the city reflected in the mostly calm Allegheny River. The Highmark Building was lit up in honor of metastatic breast cancer awareness (as was the Koppers Building), and it made for incredible scenes.

[Sanjay Mukhopadhyay @smlungpathguy]

Interestingly, sarcomatoid lung carcinomas are also almost always very high PD-L1 as shown by @VamsiVelcheti many years ago

[Nathan McGrath @Nate_path]

.@PamMichelow is one of the greatest pathologists I know, and someone I aspire to be like. #PathX #Cytopath

[International Academy Cytology @IACytology]

Our next lectuter in this stellar line-up of speakers Dr @PamMichelow, from South Africa! Talking about #atypia in #breast #Cytology #cytopath
#IACcompanionmeeting #ECCyto2026

[Sanjay Mukhopadhyay @smlungpathguy]

#PathTweetAward

[Nathan McGrath @Nate_path]

Saving this for the weekend so I can read it with a good cup of coffee. Very timely and something I have been thinking about a lot! #PathX

[Kamran Mirza MD PhD - کامران مرزا @KMirza]

For >300 years, pathologists learned by looking through a microscope. With digital pathology the multi headed scope is disappearing. Or is it multiplying?

A personal reflection on mentorship, digital pathology, and learning to see.

The posture is different. The eye is the same.

@AcadPathol

https://t.co/W0K5QxpigS