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Plunging ranula.

Vivek Kalra¹, Khurram Mirza, Ajay Malhotra

¹Department of Diagnostic Radiology, Yale University, 333 Cedar St, New Haven, CT 06520-8042, USA. Vivek.kalra@yale.edu

Journal of Radiology Case Reports

|April 4, 2012

Summary

Plunging ranulas, rare neck cysts from obstructed sublingual glands, extend into the submandibular space. Surgical removal of the cyst and gland offers definitive treatment for this condition.

Area of Science:

Head and Neck Surgery
Oral and Maxillofacial Surgery
Otolaryngology

Background:

Plunging ranulas are rare mucous retention pseudocysts originating from the sublingual gland.
These cysts characteristically extend inferiorly beyond the mylohyoid muscle into the submandibular space.

Observation:

A 44-year-old female presented with a painless, slowly enlarging neck mass.
Imaging revealed a simple cystic lesion in a location consistent with a plunging ranula.

Findings:

The plunging ranula was identified by its characteristic inferior extension through or over the mylohyoid muscle.
Imaging was crucial in delineating the extent of the cyst and relevant surgical anatomy.

Implications:

Keywords:

cystic neck masses diving ranula plunging ranula ranula

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Plunging ranulas must be included in the differential diagnosis for cystic neck masses, especially those with submandibular space involvement.

Definitive treatment involves surgical excision of both the ranula and the affected sublingual gland.