To review the imaging anatomy of the oral cavity in computed tomography and magnetic resonance imaging To identify advantages and disadvantages of each imaging method used to evaluate the oral cavity To review the imaging aspect of oral cavity cancer in each anatomic subsite To understand the role of imaging methods in local staging and detection of nodal and distant metastasis,
bone involvement and perineural spread.
Oral cavity cancer is the most frequent cancer in the head and neck region Main risk factors: tobaco use (chewing,
HPV infection Physical examination with visual inspection and bimanual palpation are the mainstays of oral cavity cancer diagnosis This review will demonstrate how imaging methods can contributeto the detection and evaluation of oral cavity cancer.
Findings and procedure details
1 - Imaging anatomy of the oral cavity The oral cavity is the most ventral portion of the aerodigestive tract.
It is subdivided into: Lips Floor of the mouth Oral tongue (anterior two-thirds) Gingival and buccal mucosa (includes labial and jugal mucosas) Hard palate Retromolar trigone Boundaries: Superiorly: nasal cavities Inferiorly: mylohyoid muscle (separates floor of mouth from submandibular space) Laterally: lips,
retromolar trigone Posteriorly: oropharynx 1.1 -...
Imaging methods are routinely used in oral cavity cancer,
playing significant roles in the diagnosis and evaluation of these lesions. Advantages and disadvantages of each method must always be remembered. Each lesion subsite has their own inherent peculiarities. The use of imaging greatly benefits the clinical evaluation of local staging,
bone invasion and perineural spread. Knowledge of when and how to use radiological methods is helpful to the multidisciplinary team...
Postsurgical Imaging of the Oral Cavity and Oropharynx: What Radiologists Need to Know.
RadioGraphics 2015; 35:804–818. Yuen A PW- Y,
Ng R W-Lan,
Lam P K-Y L,
Preoperative measurement of tumor thickness of oral tongue carcinoma with intraoral ultrasonography. Head Neck 2008,
30: 230–234. Henrot P,
Dynamic Maneuvers in Local Staging of Head and Neck Malignancies with Current Imaging Techniques: Principles and...