What is the Retromolar Trigone?
The retromolar trigone (RMT) is a small triangular subsite of the oral cavity. It is the portion of mucosa that lies behind the third molar tooth covering the anterior ramus of the mandible.
Is Retromolar Trigone cancerous?
Retromolar trigone cancers are rare but highly aggressive malignancies that mostly present at an advanced stage. Advanced tumor stage and existence of metastatic cervical lymph nodes had negative impacts on survival. Surgery with negative surgical margins followed by RT or CRT shows favorable outcomes at early stages.
Why is Retromolar Trigone important?
The mucosa covering the Retromolar Trigone is rigid as it is tightly adherent to the underlying alveolar bone. This is what is said to help malignant tumors infiltrate the mandible in a short period if time in the early stages. The rTR is known as the anatomic crossroad where muscular and nervous components converge.
Where is the Retromolar Trigone?
The small area behind the wisdom teeth. Anatomy of the oral cavity.
Is Retromolar Trigone oral cavity or oropharynx?
The retromolar trigone is a small mucosal area on the mandibular ramus behind the posterior molars. This is a junction point between the oral cavity, oropharynx and nasopharynx allowing for complex spread of tumours.
What is retromolar?
The retromolar pad is a mass of soft tissue located at the posterior end of the mandibular alveolar ridge. This pad covers the underlying bone with surrounding attached muscle fibers. Sicher described retromolar pad as a triangular soft elevation of mucosa that lies distal to third molar [1].
Is retromolar Trigone part of the oral cavity?
The retromolar trigone is a small triangular-shaped subsite of the oral cavity. It is the portion of mucosa that lies behind the third molar tooth, covering the anterior ramus of the mandible.
What is the oropharynx function?
Oropharynx: The middle part of the throat connects to the oral cavity (mouth). It allows air, food and fluid to pass through. Laryngopharynx (or hypopharynx): The bottom part of the throat is near the larynx (or voice box). It regulates the passage of air to the lungs and food and fluid to the esophagus.
What is difference between gum and gingiva?
gum, also called gingiva, plural gingivae, in anatomy, connective tissue covered with mucous membrane, attached to and surrounding the necks of the teeth and adjacent alveolar bone. Before the erupting teeth enter the mouth cavity, gum pads develop; these are slight elevations of the overlying oral mucous membrane.
What is the retromolar trigone?
The retromolar trigone, sometimes called the retromolar fossa , is an oral cavity subsite that consists of the mucosa posterior to the last mandibular molar. It is roughly triangular shaped and extends superiorly towards the maxilla along the anterior surface of the mandible .
What is squamous cell carcinoma of the retromolar trigone?
Squamous Cell Carcinoma of the Retromolar Trigone. Epidemiology. The retromolar trigone (RMT) is a triangular area situated behind the molars between the posterior portion of the maxillary and mandibular alveolar ridges. Overall, the RMT is the least common site of squamous cell carcinoma (SCCA) of the oral cavity.
How is retromolar trigone cancer diagnosed?
Diagnostic methods to detect Retromolar Trigone Cancer, Cyst or Tumors are Computed Tomography – multidetector CT has been found to be useful in providing better anatomic resolution with options like “puffed-cheek distension”. Most common type of Cancer seen is the Squamous cell carcinoma in different grades of differentiation.
How is epidermoid carcinoma of the retromolar trigone treated?
Combination surgery with postoperative or preoperative RT offers better locoregional control and disease-free survival than RT alone for epidermoid carcinoma of the retromolar trigone. Lymph node status significantly influences the disease-free survival and distant metastasis rates.