MRSA septic pulmonary emboli presenting as isolated focal chest pain in an adolescent

Abstract

This case demonstrates the importance of considering septic pulmonary embolism (SPE) on the differential for chest pain in the pediatric population, especially in patients with a history of skin and soft tissue infection. The adolescent patient in this report, with a history of axillary hidradenitis suppurativa complicated by methicillin-resistant Staphylococcus aureus (MRSA) superinfection and recent completion of a 3-month course of doxycycline, presented with isolated focal chest pain in the absence of other infectious or respiratory signs or symptoms. Initial pulmonary imaging revealed multiple bilateral wedge-shaped nodules. Three specialty teams were consulted in the patient's evaluation, resulting in biopsy of a suspicious lesion that confirmed the diagnosis of MRSA SPE. Following a course of targeted antibiotic therapy, the patient's chest pain resolved and imaging findings improved. Insights gleaned from the workup of this patient are useful in formulating a framework for recognition of SPE in children presenting with chest pain, and also highlight the importance of considering insidious SPE presentation in the setting of antibiotic pretreatment.

Keywords: CRP, C-reactive protein; CT-PA, computed tomography-pulmonary angiography; Chest pain; DVT, deep vein thrombosis; ED, emergency department; HS, hidradenitis suppurativa; MRSA, methicillin-resistant Staphylococcus aureus; Methicillin-resistant staphylococcus aureus; Pediatric radiology; SPE, septic pulmonary embolism; Septic pulmonary embolism.