Episodio – Urticaria por hipersensibilidad inmediata | USMLE Step 1

from USMLE DREAMERS · host USMLE DREAMERS

En este episodio analizamos un caso clásico de urticaria aguda desencadenada por un antibiótico (penicilina V). Revisamos la fisiopatología central: degranulación mastocitaria mediada por IgE, aumento de permeabilidad vascular y edema del dermis superficial, además del hallazgo histológico clave: dermal edema.#USMLEStep1 #USMLEDreamers #Immunology #Dermatology #Hives #Urticaria #Hypersensitivity #PenicillinReaction

Episode metadata supplied by the publisher feed · Published Dec 9, 2025

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Episodio – Urticaria por hipersensibilidad inmediata | USMLE Step 1

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