High-resolution ultrasonography image of the submandibular gland demonstrating steinstrasse in the Wharton’s duct causing mild dilatation consistent with features of submandibular sialolithiasis. Note the stacked calculi (numbers), dilated Wharton’s duct with sludge (orange stars), and hypoechoic areas (blue stars) within the submandibular gland consistent with features of sialadenitis.