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,
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.
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
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.
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.
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.
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
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.