Discover and read the best of Twitter Threads about #IDPhotoQuiz

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#IDBoardPearls #IDtwitter #IDPhotoQuiz

📟 8 YO admitted w/ flushing, an urticaria rash on face & torso, and itching
His mom says the rash occurred within an hr of him eating a tuna sandwich. He complained of a spicy taste & had perioral burning causing her to seek medical help N Engl J Med 2013; 368:e31 DOI: 10.1056/NEJMicm1300169
❓What is the most likely diagnosis?
Answer: Scombroid poisoning
👇🏼

🎙Fish Poisoning Syndromes:

🚨Scombroid:
⚡️commonly misdiagnosed as a seafood allergy so be 👀

Due to the incorrect storage of 🐟 (above 4C) ➡️ bacterial overgrowth & ⬆️ histamine (by bacterial enzyme called histidine decarboxylase)
👇🏼

🦠- Kleb
Read 12 tweets
#IDBoardPearls #IDtwitter #IDPhotoQuiz

📟 14 YO boy from Ghana with 🤒 & malaise reports a 5 week history of mulriple skin lesions, which are show below. The lesions on his legs are painful & pruritic. He says multiple kids from his school have them too

🧪- VDRL & FTA-ABS + The American Journal of Tro...
❓What organism most likely caused this?
Answer: Treponema pallidum subsp pertenue

🎙Endemic Treponematoes:

🚨Yaws:
🦠- Treponema pallidum subsp pertenue
🗺- Africa, Asia, Latin America, Pacific Islands
Incubation ⏲- 3 wks
Transmission - auto inoculation, close contact with infected lesion
🔎- 🧒🏻👧🏻
Primary Stage -
Read 13 tweets
#IDBoardPearls #IDtwitter #IDPhotoQuiz

📟 54 YO M with type II diabetes presents with a mobile, nontender node on the left side of his neck.

Biopsy culture: Journal of clinical and diagnostic research
❓Clinical presentation & micro is consistent with what infection?
Answer: Actinomyces spp

🎙Cervicofacial Actinomycosis:

Risk factors - diabetes, trauma, 🦷 infections

🧫- “sulfur granules,” molar 🦷 appearing colonies on plates
👇🏼
vs Nocardia’s chalky white ➡️ orange color
Read 7 tweets
#IDBoardPearls #IDtwitter #IDPhotoQuiz

📟 A farmer from the Dominican Republic is here in the US visiting family & presents with a swollen foot that has been progressing over the past 8 years

📸 of his R foot along with biopsy of lesion Indian Journal of Surgery S...University of Adelaide
❓What is the mostly likely organism?
Answer: Madurella mycetomatis

🎙Cutaneous Fungal/Mold Infections:

🚨Madurella mycetomatis: Eumycetoma or “Madura foot”
🔎- traumatic inoculation ➡️ chronic nodular lesions w/ sinus tracts w/ macroscopic grains ➡️ 🦴 Evolve over yrs
🔬- grain w/ numerous hyphae
👇🏼
This is fungal
Read 13 tweets

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