Related Experiment Video
Updated: May 7, 2026

Ultrasonographic Evaluation of Salivary Glands for Sjogren's Syndrome: Diagnostic and Monitoring Insights
Published on: October 13, 2023
Hypoplasia of the parotid gland: computed tomography sialography diagnosis
Lisha Sun1, Zhipeng Sun, Xuchen Ma
1Research Associate Professor, Key Laboratory of Oral Pathology, School and Hospital of Stomatology, Peking University, Beijing, China.
Abstract:
We report two unusual cases of non-syndromic hypoplasia of the parotid gland. The hypoplastic parotid gland mimicked a preauricular parotid tumor in one case and presented as an incidental image finding in the other case. Absence of the deep lobe and isthmus of the parotid parenchyma could be determined on axial computed tomography (CT) by revealing fat tissue composition of the parotid space. The underdeveloped superficial lobe of the gland was observed on three-dimensional CT sialography.
Related Concept Videos
Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Imaging Studies III: Computed Tomography
