Muscles Of Floor Of Mouth Radiology

Ranulas present as a mass either in the floor of the mouth where they elevate the mucosa often with a blueish tinge or in the neck 7.

Muscles of floor of mouth radiology.

After the activity the students were given a quiz on anatomic relationships of the floor of mouth. In particular small tumors on the floor of the mouth can be missed on ct images. When using multidetector computed tomography. Floor of mouth muscles radiology.

Perceptions about the activity were collected through a survey. Oral cavity and floor of the mouth. Whats people lookup in this blog. The mylohyoid muscle is flat and triangular and is situated immediately superior to the anterior belly of the digastric muscle it is a pharyngeal muscle derived from the first pharyngeal arch and classified as one of the suprahyoid muscles together the paired mylohyoid muscles form a muscular floor for the oral cavity of the mouth.

The floor of mouth is an oral cavity subsite and is a common location of oral cavity squamous cell carcinoma. Obliteration of the sublingual plane which normally appears as an absolutely symmetric hypodense region between the mylohyoid and geniohyoid muscles is the main feature in ct for detection of small tumors of the floor of the mouth. Ranulas arise either spontaneously or as a result of trauma to the floor of mouth including surgery. Mancuso and robert hermans imaging approach techniques and relevant aspects general examination patients should be positioned with the neck extended so that the mandibular body is perpendicular to the tabletop for either computed tomography ct or magnetic resonance mr study.

The floor of mouth is a u shaped space which extends and includes from the oral cavity mucosa superiorly and the mylohyoid muscle sling 2 3. During radiologic imaging for tnm classification of squamous cell carcinomas of the oral cavity and the floor of the mouth it is important to assess the extrinsic muscles of the tongue which include the hyoglossus and genioglossus muscles and the mandible as invasion of these structures is indicative of a t4 lesion figs 21 22. Each student was asked to label the floor of mouth muscles on the image he or she acquired. For purposes of surgical planning the floor of the mouth is defined as the space between the mucosal surface and the mylohyoid muscle sling and comprising both structures 1.

All 33 students obtained a floor of mouth image within a three minute time limit. Familiarity with the radiologic imaging appearances of the floor of the mouth and recognition of anatomic landmarks such as the mylohyoid and hyoglossus muscles are especially useful for.