Abbreviations

• Retromolar trigone (RMT)

Definitions

• RMT: Small triangular subsite of oral cavity composed of mucosa posterior to last mandibular molar that covers anterior surface of lower ascending ramus of mandible and extends superiorly up to maxillary tuberosity
• Pterygomandibular raphe (PMR): Thick fascial band that extends between posterior border of mandibular mylohyoid ridge and hamulus of medial pterygoid plate
  • Fascial band represents thickening of middle layer of deep cervical fascia condensed between posterior margin of buccinator muscle and anterior margin of superior constrictor muscle

Overview

Extent

Anatomy Relationships

Internal Contents

Questions

Imaging Recommendations

Imaging Pitfalls

Clinical Importance