Ranula

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[edit] Discussion of Ranula

  • A ranula is a cystic lesion resulting from obstruction of the sublingual gland duct.
  • “Mucus-escape phenomenon” or the “mucus-retention phenomenon”: with partial or complete obstruction of the sublingual gland duct, the duct dilates and subsequently ruptures, allowing its secretions to leak into the surrounding soft tissue.
  • Two types:
    • Simple ranula: Located above the mylohyoid
    • Plunging ranula: Dissects through the mylohyoid muscle
  • The vast majority of manulas contain a lining composed of condensed connective tissue rather than a true epithelial lining.

[edit] Imaging Findings for Ranula

[edit] CT

  • Cystic mass in the sublingual area.

[edit] Images

Patient #1

[edit] External Links

[edit] References for Ranula