As the cystic lesion enlarges, it can “rupture” through its sublingual space boundaries and extend into the submandibular space through the posterior free edge of the mylohyoid muscle or mylohyoid boutonniere. Referred to as a plunging ranula, the herniated portion leaves behind a band-like por...
2 The anatomic boundaries are the mucosa of the floor of mouth superiorly, the mylohyoid muscle inferiorly, the medial surface of the mandible laterally, and the muscles along the base of the tongue medially (Fig. 4). Within the confines of this anatomic space, significant structures are ...