Abstract：ObjectiveTo investigate the ultrasonic diagnostic characteristics of pharyngoesophageal diverticulum (PED). MethodsThe ultrasonographic features of 6 cases with PED in Air Force Medical Center were analyzed retrospectively from April 2016 to February 2021. The direct and indirect signs of ultrasonic diagnostic characteristics of PED were summarized. ResultsAmong the 6 patients, 4 cases were accurately diagnosed, 2 cases were misdiagnosed as thyroid nodule. The direct ultrasonic signs were "nodular like" echo protruding to the thyroid parenchyma, low echo "mucosal wall" structure, and with the esophageal mucosa, containing strong echo of punctated or liner gas. The indirect signs were that the lesion could move with swallowing, the "gas-liquid line" in the lesion flowed after drinking water, and the lesion did not deform after pressure probe. ConclusionAccording to the direct and indirect ultrasonographic signs of PED, the auxiliary diagnosis of PED can be optimized and the incidence of misdiagnosis can be reduced.
