Conventional and MR-sialography of accessory submandibular glands: A case report

Radiology Case Reports

article

Ryan P. Sabotin¹  Joan E. Maley¹  Henry T. Hoffman¹ 

[1] Department of Otolaryngology, University of Iowa Hospitals and Clinics

关键词: Accessory submandibular gland;    Sialadenitis;    Sialolithiasis;    MR sialography;    Ultrasound;   

DOI  :  10.1016/j.radcr.2022.09.054

学科分类：生物化学工程

来源: University of Washington * Department of Radiology

【 摘 要 】

Our review of the literature shows anatomical variation of the submandibular gland is a rare entity, unlike the variation that can be seen in parotid glands . Specifically, bilateral submandibular abnormality has only been reported on one occasion with limited imaging in our review. We report a 78-year-old female with a history of sialadenitis and sialolithiasis who presents with swelling and pain in the right submandibular gland. Sialography of the right submandibular gland disclosed a second primary duct branching off the main duct to a second submandibular gland. Cannulation of the left submandibular duct was unsuccessful due to scarring of the duct orifice; however, subsequent MR sialography identified marked submandibular duct dilation and the incidental finding of a second anteriorly located left submandibular gland. The anatomic detail provided by conventional digital sialography is contrasted to the useful but less-defined imaging provided by MR sialography. To our knowledge, this is the first reported case of bilateral accessory submandibular glands that has been evaluated using both conventional and MR sialography.

【 授权许可】

CC BY|CC BY-NC-ND