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Representative sialography and ultrasonography of patients diagnosed with sialadenitis. a Left Stensen’s duct and intraglandular ductile show dilation with stenosis (arrows). Note the irregular surface of ductal filling (arrowheads) suggesting of plugs and coagulated substances. b Dilated duct is shown on ultrasonography of the same patient (arrow). c Power Doppler image shows increased vascularity, implicating inflammatory state of parenchyma
