Parotid Sialolithiasis Diagnosed on Point of Care Ultrasound

Sialoliths are the most common salivary gland pathology. Point of care ultrasound (POCUS) is a useful method for identifying and locating sialoliths in acutely presenting patients. POCUS can detect salivary stones with high sensitivity and accuracy and decreases the need for radiation exposure from other imaging modalities. In this case, we describe a 58-year-old woman without significant past medical history who presented to the emergency department with left-sided facial pain and swelling without infectious symptoms. A facial POCUS examination was performed on her left cheek, which identified an echogenic sialolith obstructing the parotid duct with associated ductal dilation. This allowed for prompt diagnosis without a need for further imaging.