Mastering The Differential ๐Ÿฉบ (@mtd_000) 's Twitter Profile
Mastering The Differential ๐Ÿฉบ

@mtd_000

๐Ÿง  Mastering the Differential: Medical quizzes, guidelines, and infographics for healthcare professionals and students. ๐Ÿ“š๐Ÿฉบ๐Ÿ’‰๐Ÿ’Š๐Ÿงฌ #MedEd #MedTwitter #MedX

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calendar_today10-05-2023 18:57:08

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19-year-old male โ€ข Congenital follicular openings on the left clavicle and upper back โ€ข Plugged with dark keratinous debris in a linear distribution with subtle background dyspigmentation ๐Ÿ‘‡ ๐Ÿ‘‰ What is the diagnosis Credit: NEJM

19-year-old male

โ€ข Congenital  follicular openings on the left clavicle and upper back 
โ€ข Plugged with dark keratinous debris in a linear distribution with subtle background dyspigmentation ๐Ÿ‘‡

๐Ÿ‘‰ What is the diagnosis

Credit: NEJM
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Pathophysiology: Why pH Shifts Signal Infection in Wounds The skin's surface maintains an acidic mantle (normal pH โ‰ˆ 4.5โ€“5.5, sometimes cited as ~5), created by sebum, sweat, fatty acids, and amino acids from keratinocytes. This acidity forms a key antimicrobial barrier: it