Pediatric patients with AHO generally present with fever and localized pain, swelling, and loss of limb function though, across all age groups, no single sign or symptom is pathognomonic of the disease. Additionally, being unable to obtain a reliable history in preverbal pediatric patients increases the challenge of making this diagnosis. The age of the patient and the location of the infection are relevant for discovering signs and symptoms. Loss of function can present as refusal to move a limb (pseudoparalysis) in infants and neonates or as a limp in toddlers and older children.
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