February 08, 2024

Ultrasound of Sublingual Dermoid Cyst

Listen Later

8 minutes

In this radiology lecture, we review the ultrasound appearance of sublingual dermoid cyst and explain floor of mouth anatomy!

Key teaching points include:

The floor of the mouth is a horseshoe-shaped area beneath tongue and in between sides of mandible, inferiorly bounded by mylohyoid muscle, and containing sublingual space (SLS)

SLS medial border: Midline genioglossus/geniohyoid muscle complex; SLS inferolateral border: Mylohyoid muscle

Anterior margin of hyoglossus muscle projects into posterior SLS

Sublingual dermoid cyst is a rare, benign cyst with squamous epithelial lining and contains skin appendages

Dermoid and epidermoid cysts are in same family, terminology often used interchangeably, although epidermoid cysts less common and tend to contain fluid contents only

Dermoid cyst mean age of presentation late teens to twenties, average age 30

Presents as a slowly enlarging neck mass, may cause dysphagia

Often round or oval in shape and homogeneously hypoechoic with punctate echogenic foci

May have pathognomonic “sack of marbles” appearance

Relationship to mylohyoid is key for surgical planning: Intraoral resection for sublingual (above mylohyoid) location, extraoral approach for submental/submandibular (below mylohyoid) location

Most cysts are midline

DDx: Suprahyoid thyroglossal duct cyst, ranula (simple and diving), abscess and lymphangioma

To learn more about the Samsung RS85 Prestige ultrasound system, please visit: https://www.bostonimaging.com/rs85-prestige-ultrasound-system-4

Click the YouTube Community tab or follow on social media for bonus teaching material posted throughout the week!

Spotify: https://spoti.fi/462r0F2

Instagram: https://www.instagram.com/Radquarters/

Facebook: https://www.facebook.com/Radquarters/

X (Twitter): https://twitter.com/Radquarters

Reddit: https://www.reddit.com/user/radiologistHQ/

The post Ultrasound of Sublingual Dermoid Cyst appeared first on Radquarters.

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Radiology Lectures | Radquarters

By Daniel J. Kowal, MD

4.9

7676 ratings

February 08, 2024

Ultrasound of Sublingual Dermoid Cyst

Listen Later

8 minutes

In this radiology lecture, we review the ultrasound appearance of sublingual dermoid cyst and explain floor of mouth anatomy!

Key teaching points include:

The floor of the mouth is a horseshoe-shaped area beneath tongue and in between sides of mandible, inferiorly bounded by mylohyoid muscle, and containing sublingual space (SLS)

SLS medial border: Midline genioglossus/geniohyoid muscle complex; SLS inferolateral border: Mylohyoid muscle

Anterior margin of hyoglossus muscle projects into posterior SLS

Sublingual dermoid cyst is a rare, benign cyst with squamous epithelial lining and contains skin appendages

Dermoid and epidermoid cysts are in same family, terminology often used interchangeably, although epidermoid cysts less common and tend to contain fluid contents only

Dermoid cyst mean age of presentation late teens to twenties, average age 30

Presents as a slowly enlarging neck mass, may cause dysphagia

Often round or oval in shape and homogeneously hypoechoic with punctate echogenic foci

May have pathognomonic “sack of marbles” appearance

Relationship to mylohyoid is key for surgical planning: Intraoral resection for sublingual (above mylohyoid) location, extraoral approach for submental/submandibular (below mylohyoid) location

Most cysts are midline

DDx: Suprahyoid thyroglossal duct cyst, ranula (simple and diving), abscess and lymphangioma

To learn more about the Samsung RS85 Prestige ultrasound system, please visit: https://www.bostonimaging.com/rs85-prestige-ultrasound-system-4

Click the YouTube Community tab or follow on social media for bonus teaching material posted throughout the week!

Spotify: https://spoti.fi/462r0F2

Instagram: https://www.instagram.com/Radquarters/

Facebook: https://www.facebook.com/Radquarters/

X (Twitter): https://twitter.com/Radquarters

Reddit: https://www.reddit.com/user/radiologistHQ/

The post Ultrasound of Sublingual Dermoid Cyst appeared first on Radquarters.

...more

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