Travis Smith, DO Profile picture
Sep 12, 2020 22 tweets 28 min read Read on X
Time for some #SpacedRepetition: @CPSolvers @DxRxEdu @rabihmgeha @dminter89
Chat recap of the #ClinicalPearls #VirtualMorningReport

Episode 140 - Virtual Morning Report - September 11, 2020 clinicalproblemsolving.com/morning-report… Image
Let's start with an initial PR:

A 27 y/o male with no PMH from Mexico presents with 10 days of generalized abd pain, vomiting, diarrhea, fever, & yellowing of his eyes

Deploy our Jaundice Schema; clinicalproblemsolving.com/dx-schema-jaun…
Other causes of yellow skin, e.g. excess beta carotene, usually do not cause deposition in conjunctiva or sclera, so eyes aren’t yellow

sounds biliary in nature, but could also consider hemolysis with gallstones like in her spherocytosis or something like that.
PNH can cause mesenteric vein thrombosis causing abd pain & jaundice

definitely want to consider viral hepatitis, TB, leptospirosis. Want to know his immune status as well.

What about Vanishing Bile Duct Syndrome... Seen on the last @UnremarkableLab ncbi.nlm.nih.gov/books/NBK54871…
what about mosquito borne or rickettsial

other one would be hepatic amebiasis causing obstructive jaundice and abdominal pain

malaria also a consideration depending on location although not as endemic in Mexico.

typhoid fever as a consideration as well as Leishmaniasis
HIV test would be important. HIV cholangiopathy is common, caused by cryptosporidium, CMV, microsporidium

If he is drinking unpasteurized milk, can get Brucellosis,

Vitals show fever, appropriate tachycardia, nml BP

PE shows icterus, diffuse abd pain, hepatomegaly
Labs shows WBC: 14.7, Hgb 13.4, Plt 46,

Na 127, T Bili 13.7 D Bili 9.2, GGT 345, Alb 2.8, PTT ⏫⏫ 48 , INR 1.5 Lactate 3, Fibrinogen 595, ALT 108, AST 118

Hep A IgG + Hep serology neg
based on abdominal pain, jaundice, fever ill start treating for cholangitis, needs Zosyn

markedly elevated bilirubin compared to transaminase levels

schistosomiasis can cause portal hypertension leading to thrombocytopenia. can present with biphasic illness (Katayama fever)
I would start doxy. def worried about possible leptospirosis with hyperbili, hyponatremia, and thrombocytopenia

Is hyponatremia poor intake/losses/, adh elevation, disease mediated (like lepto/rickettsial), or adrenal
WE need some imaging

CT shows occluded mesenteric vein, heterogenous liver with periportal edema, non-occlusive portal vein thrombosis, appendicial inflammation with right sided colitis

MRCP confirms colitis with mesenteric and portal vein thrombosis. hmmmm
Fun fact: Leptospira inhibits the Na+-K+-Cl- cotransporter activity in the thick ascending limb of Henle, resulting in hypokalemia and sodium wasting which is why hyponatremia present

Stool cultures shows PCR + camplyobacter

Blood cultures return + for Ecoli and Strep Anginosus
Is this strongyloides? polymicrobial bacteremia

strongy is associated with polymicrobial infections and predisposing to bacterial infections including meningitis I think it is due to leaving GI tract letting bacteria to leak out.

htvl1 is also associated with strongy
Strep Anginosus is a "Honey Badger"

CIA strep causing abscesses (constellatus, intermedios, anginosus,

ncbi.nlm.nih.gov/pmc/articles/P…

you can get portal vein thrombosis also from GI infectious even diverticulitis, ncbi.nlm.nih.gov/pmc/articles/P…
A related NEJM case: Case 3-2020: A 44-Year-Old Man with Weight Loss, Diarrhea, and Abdominal Pain. nejm.org/doi/full/10.10….

Some more labs showing neg lupus anticoagulant but Positive Anti Beta 2 Glycoprotein that was confirmed a few months later. Final Dx
Antiphospholipid Syndrome causing a septic thrombophlebitis of mesenteric and portal vein

Lemierres cousin of the GI tract, can we name it? O’Donnell syndrome... Great case Matt!

A free read here. Gem by @Gurpreet2015 ncbi.nlm.nih.gov/pmc/articles/P…
Teaching points illustration by @sukritibanthiya Image

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More from @RosenelliEM

May 30, 2021
Some cool #Syphilis Pearls from an article that @k_vaishnani shared ncbi.nlm.nih.gov/pmc/articles/P… Primary syphilis first manifests into a painless chancre at the site of inoculation 1 to 6 weeks later…
Hematogenous dissemination then can occur typically 4 to 10 weeks later, giving rise to secondary syphilis. <40% of pts w/ syphilis have primary syphilis diagnosed. These “Secondary” lesions last for several weeks before spontaneously resolving. Coined “early, latent infection”
What does late infection mean? When syphilitic lesions recur after 1 year from the initial eruption, or seropositivity is detected more than 1 year after the initial eruption, it is termed late latent syphilis.
Read 5 tweets
May 29, 2021
Some optics neuritis pearls in a short #Medtweetorial 🧵…. We all know that optic neuritis is frequently associated with multiple sclerosis (MS). But optic nerve inflammation can exist from autoimmunity, infection, granulomatous disease, paraneoplastic disorders, & demyelination Image
Classical ON from MS is unilateral, moderate, painful color vision loss with an afferent pupillary defect & normal fundus examination.
In those with ON, 95% of patients showed unilateral vision loss & 92% had associated retroorbital pain that frequently worsened w/ eye movement.
Read 14 tweets
Oct 1, 2020
If you have not listened to the @CuriousClinPod most recent podcast (Episode 10: Why does metronidazole treat both bacterial and parasitic infections?) then I suggest you tune in.

curiousclinicians.com/2020/09/30/why…

I'll summarize their show notes here in short #medtweetorial
First a question:

Was metronidazole first used as an antibiotic or as an antiparasitic?
If you guessed antiparasitic, then you would be correct!

It was developed in the 1950s to treat the parasite trichomonas & then was used in the 1960s to treat other parasitic infections, like giardia and amoebiasis.
Read 14 tweets
Oct 1, 2020
When you order a serum alcohol level, what does the lab measure? An answer and a quick #Medtweetorial on false elevations in #ETOH
If you guessed NADH, you would be correct.
Most lab assays for serum alcohol utilize a reagent containing alcohol dehydrogenase & NAD+

This is used to convert all present ethanol to acetaldehyde

Thereby reducing present NAD+ to NADH.
Read 11 tweets
Sep 26, 2020
A Teal pain in the neck:

Follow along for a short #medtweetorial on #CervicalArteryDissection

or see the full handout here emboardbombs.com/s/Cervical-Art…

from @EMBoardBombs @blakebriggsMD @IltifatMD
This review will focus on spontaneous dissections, not traumatic, as well as the pathophys, risk factors, presentation, diagnosis, and management.

Cervical artery dissections are a common cause of stroke in young(<50 years )w/ some reports of up to 20% being from dissections
Much like aortic dissections, there is some loss of structure along the wall of either the internal carotid artery or vertebral artery

This allows blood to collect within the intima.

In patients <50 years old, cervical artery dissections account for 20% of ischemic strokes.
Read 24 tweets
Sep 26, 2020
Time for some #SpacedRepetition from @CPSolvers @DxRxEdu @rabihmgeha

Some chat recap #ClinicalPearls and bonus pearls from #VirtualMorningReport on Friday Sept 25th clinicalproblemsolving.com/morning-report…

Case by the brilliant @Rafameed Image
A 31-year-old M born and raised in Brazil w/ no PMH presented with a 3 mon history of worsening DOE, orthopnea, 7kg weight loss, abdominal distention, dry cough, and syncope

Base rate of disease for an ID case with @k_vaishnani and @Rafameed is very high
An interesting fact from @3owllearning : Depending on the clinical problems, the studies of disease probability for differential diagnosis often show 10 - 25% of cases are unexplained, even after careful examination and testing.
Read 17 tweets

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