Point-of-Care Ultrasound Diagnosis of Early Pyomyositis in a Pediatric Patient: A Case Report.

Skin and soft tissue infections are common in the pediatric emergency department. Because pyomyositis occurs deep to the fascial plane, it is often difficult to appreciate on physical examination. The utility of point-of-care ultrasound for identifying pyomyositis is of great value to the pediatric emergency physician as this diagnosis has a different expected clinical course and requires different management than other skin and soft tissue infections. This case report describes a child who presented to the pediatric emergency department with leg pain and redness, initially concerning for an abscess based on clinical findings. Point-of-care ultrasound diagnosed early pyomyositis, prompting early involvement of the pediatric surgical service and urgent computed tomography imaging, which confirmed the diagnosis.