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INI-CET 2018 — Pediatrics

Q: A child is brought to your OPD with rashes as shown below along with fever. Diagnosis is:

Meningococcemia. ***Meningococcemia*** - The image shows a **purpuric rash** with some confluent lesions, which are highly characteristic of **meningococcemia**, especially in a child with fever. - This rash is caused by **endotoxin-mediated vascular damage**, leading to petechiae and purpura that do not blanch under pressure. *Dengue haemorrhagic fever* - While dengue can cause petechiae and purpuric rashes, it typically presents with a more generalized rash, bleeding manifestations like **epistaxis** or **gum bleeding**, and often a history of mosquito exposure. - The rash in dengue is often described as an **"islands of white in a sea of red"** pattern, which is distinct from the more widespread, darker purpuric lesions seen in the image. *Leptospirosis* - Leptospirosis can manifest with a rash, but it is typically **maculopapular** or **erythematous**, sometimes appearing petechial. However, it rarely presents with the extensive, dark purpuric lesions shown, which are indicative of widespread microvascular damage. - Other classic features include **conjunctival suffusion**, myalgia, and severe headache, often following exposure to contaminated water or animal urine. *Scrub typhus* - Scrub typhus typically presents with a **maculopapular rash** that may become generalized, often sparing the face, palms, and soles. A characteristic **eschar** at the site of the chigger bite is a key diagnostic feature. - While petechiae can occur, the widespread, dark purpuric lesions seen in the image are not typical for scrub typhus. [Practice more Pediatrics PYQs on OnCourse]

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A child is brought to your OPD with rashes as shown below along with fever. Diagnosis is: