Surgical Management of Ranula Revisited
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A ranula may present in two forms: a simple (or intraoral) ranula and a plunging (or cervical) ranula. A recent paper on ranula published in this journal  refers to “conflicting evidence as to which treatment modality is best”. Subsequent correspondence [2, 3] has exposed a need for a review of the alleged “gap in knowledge on the current concept of its aetiopathogenesis” .
Ranulas are formed by some kind of trauma to the sublingual salivary gland (SLG) that leads to the extravasation of its secretions into the sublingual space and/or the deep cervical space. The ranula cyst itself is therefore a pseudocyst with contents generated by the disruption of the SLG tissues. These facts emerge from irrefutable histological evidence in the literature [4, 5, 6]. The trauma may be generated by intraoral activity such as eating, or dental and such-like instrumentation, or from external blunt trauma to the submandibular region. Herniation of the SLG through a...