🧬Jason N. Rosenbaum, MD🧬 (he/him)
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mopathguy.bsky.social
🧬Jason N. Rosenbaum, MD🧬 (he/him)
@mopathguy.bsky.social
3K followers 1.6K following 660 posts
Molecular Pathologist, Nuclear Family Member, Atomic Fireball. None of this is medical advice. It’s barely cogent. #MedSky #PathSky #MoPath
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mopathguy.bsky.social
It’s still just one guy, right?
Screenshot of a New York Times headline, “The Pope Needs to be More Specific.” Byline is Ross Douthat. It’s a 6 min read. There is a picture of the Pope holding a sign with a hand pointing to his left saying “That way”
October 14, 2025 at 11:30 PM
mopathguy.bsky.social
Final diagnosis: Dorkoma with clusters of atypia
An image of a meeting of local pathologists
September 13, 2025 at 4:09 PM
mopathguy.bsky.social
“Come with me if you want to live”
A picture of Melania Trump reading from a laptop with the caption “Melania Trump Has a Warning for Humanity: 'The Robots Are Here'”
September 5, 2025 at 2:06 PM
mopathguy.bsky.social
…and the switch.
Picture of a yellow-bodied bird with grey wings, a black head, and white markings over the headline: Great tits show early signs of splitting up: researchers uncover social clues to bird 'divorce'
July 30, 2025 at 5:23 PM
mopathguy.bsky.social
@biology.ox.ac.uk today with the bait…
Oxford Biology @biology.ox.ac.uk • 8h Wild great tits signal 'divorce' long before the breeding season — even in the winter, months before the couples rebreed with different partners in the following spring New study with @universityofleeds.bsky.social in @royalsocietypublishing.org bit.ly/4IRt7TN @sheldonbirds.bsky.social
July 30, 2025 at 5:23 PM
mopathguy.bsky.social
At the USS Midway decommissioned aircraft carrier and museum in San Diego:
In front of the USS Midway site a wooden crate marked with military style black paint that says: DO NOT DESTROY - RETURN TO DIPPIN DOTS
July 29, 2025 at 9:05 PM
mopathguy.bsky.social
Circling back to the original question, confirming one lab test with another is sometimes necessary. Your positive test was probably a screen, and confirming that result with a diagnostic is 100% appropriate.

To sum up: screens and diagnostics are “Two Great Tests That Test Great Together”
A Reese's Peanut Butter Cup with a large bite taken from it.
July 11, 2025 at 6:52 PM
mopathguy.bsky.social
So, if we start with the strainer, we will catch all the coins and a few of the larger snails. If we then use our highly specific eyes to examine what we strained, we can exclude the snails. We end up with the best result – we bring home all the coins and no snails! 5/n
A cartoon of a beach. A sifter is suspended over the beach, which contains 6 coins. Disembodied eyes appear to be looking at the sifter, and underneath the eyes are 3 large snails which appear to have been discarded. On the beach are 7 small snails, two of which are partially buried.
July 11, 2025 at 6:52 PM
mopathguy.bsky.social
We could use our eyes to easily find visible coins - we’ll miss buried coins but won’t accidentally grab many snails. Or we could use a strainer which will catch nearly all the coins but also some snails. 3/n
A cartoon of a beach with disembodied eyes looking at a disembodied hand holding three coins. On the beach are 3 coins partially buried in the sand, and 11 snails, 2 of which are partially buried in the sand. A cartoon of a beach. A sifter is suspended over the beach, which contains 6 coins and 3 large snails. Remaining on the beach are 7 small snails, two of which are partially buried.
July 11, 2025 at 6:52 PM
mopathguy.bsky.social
The answer without math: imagine a sandy beach with coins and snails. Ideally, we want to take home all the coins, leaving all the snails at the beach. 2/n
A cartoon of a beach with 6 coins, 3 partially buried in the sand. There are also 3 large snails, 1 partially buried, and 8 small snails, 1 partially buried.
July 11, 2025 at 6:52 PM
mopathguy.bsky.social
Oreo-borous
A hand holding an open faced “cookies and creme” flavored Oreo in front of a package of same.
June 11, 2025 at 10:21 PM
mopathguy.bsky.social
Bringing “followers” to a followers fight.
#ChicagoPope
Image of Laura Loomer’s Twitter feed showing the tweet “WOKE MARXIST POPE”
May 8, 2025 at 10:42 PM
mopathguy.bsky.social
1995: I drove my car into a tree on spring break.
2025:
A photo of a minivan being driven through a live sequoia tree.
April 15, 2025 at 4:47 PM
mopathguy.bsky.social
Is there a better image for an economy in arrest?
S&P 500 resembling an EKG
April 7, 2025 at 3:01 PM
mopathguy.bsky.social
Residents… SIGN OUT!!!!
Photo of a red Transformers robot toy with two cassette tapes for some reason Photo of a Transformers toy in microscope form with nearby rhinoceros and bat robots.
March 26, 2025 at 12:29 PM
mopathguy.bsky.social
@ampath.bsky.social gave me my own personalized social media promo! It’s me from ten years ago! Next to GIANT DNA!!!
AMP Live Virtual Review Course Molecular Genetic Pathology May 12-16 Faculty Jason N. Rosenbaum, M.D. Kaiser Permanente, Northern California
March 24, 2025 at 9:57 PM
mopathguy.bsky.social
Things that are dinosaurs:
Baby penguin on snowy ice Goofy chicken Colorful fluffy bird A bee hummingbird sitting in between an adult human’s fingers
March 20, 2025 at 6:59 PM
mopathguy.bsky.social
Other things that are not dinosaurs:
Drawing of a Dimetrodon Drawing of a long-necked plesiosaur Petroleum oil spilling from an overturned drum Barney the dinosaur
March 20, 2025 at 6:52 PM
mopathguy.bsky.social
IT’S MARCH!!!!!!
A photo of a fuzzy bunny on a living room floor over a link that says, “The Handmade Most Realistic Bunny Rocket Robot Toys of 2025”
March 15, 2025 at 1:57 AM
mopathguy.bsky.social
Handmade robots sort of miss the point, don’t they?
A photo of a fuzzy bunny on a living room floor, with the headline “The Handmade Most Realistic Bunny Robot Toys of 2025”
March 11, 2025 at 7:35 PM
mopathguy.bsky.social
I’d like to report discrimination against the self-aware
Image from a Department of Education submission form: “Schools should be focused on learning. The U.S. Department of Education is committed to ensuring all students have access to meaningful learning free of divisive ideologies and indoctrination. This submission form is an outlet for students, parents, teachers, and the broader community to report illegal discriminatory practices at institutions of learning. The Department of Education will utilize community submissions to identify potential areas for investigation.”
February 28, 2025 at 3:16 PM
mopathguy.bsky.social
The AP comes in hot with a photo for its readers who don’t know what a head is.
Photo of a Bluesky post from AP. Headline: Brazil's Lula undergoes a second procedure to address bleeding inside his head. Photo: The back of a bald white guy’s head.
December 12, 2024 at 2:18 PM
mopathguy.bsky.social
Hair and outfits, tho…
Image of 5 main characters from the sopranos in dark suits and dark pulled back hairstyles
December 6, 2024 at 2:52 AM
mopathguy.bsky.social
Unpaid endorsement
Trader Joe’s passion fruit rounds fruit snacks
December 2, 2024 at 3:57 AM
mopathguy.bsky.social
Name a more qualified doctor than Dr. Oz.
A can of Dr. Pepper
November 24, 2024 at 1:22 AM