Answer:
Mylohyoid herniation of the sublingual glands
Findings:
Photographs show intermittent bilateral submental swelling. MR images clearly show these swellings were nothing other than the normal bilateral sublingual glands through mylohyoid defects. Also , one can see right submandibular salivary gland aplasia. There are incidental few reactive nodes as well.
Discussion:
A defect is often present in the midportion of the mylohyoid muscle. The incidence of the defect in the mylohyoid muscle has been proven in previous anatomic studies . The defect often contains the sublingual gland and sometimes contains blood vessels, fat, or both. Imaging studies have revealed that the defect and the containing tissues can be seen on CT, MR, and ultrasound images.
Reference:
Imaging of the Mylohyoid Muscle: Separation of Submandibular and Sublingual Spaces, AJR:194, May 2010
Contributed By: Dr. Karunakaran M. Kalathi MD, Dr. Arun Chelladurai MD
Consultant Radiologists, Aarthi Scans, Thirunelveli, Tamilnadu, India
Mylohyoid herniation of the sublingual glands
Findings:
Photographs show intermittent bilateral submental swelling. MR images clearly show these swellings were nothing other than the normal bilateral sublingual glands through mylohyoid defects. Also , one can see right submandibular salivary gland aplasia. There are incidental few reactive nodes as well.
Discussion:
A defect is often present in the midportion of the mylohyoid muscle. The incidence of the defect in the mylohyoid muscle has been proven in previous anatomic studies . The defect often contains the sublingual gland and sometimes contains blood vessels, fat, or both. Imaging studies have revealed that the defect and the containing tissues can be seen on CT, MR, and ultrasound images.
Reference:
Imaging of the Mylohyoid Muscle: Separation of Submandibular and Sublingual Spaces, AJR:194, May 2010
Contributed By: Dr. Karunakaran M. Kalathi MD, Dr. Arun Chelladurai MD
Consultant Radiologists, Aarthi Scans, Thirunelveli, Tamilnadu, India