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Updated: Aug 28, 2025

A Simple Behavioral Assay for Testing Visual Function in Xenopus laevis
Published on: June 12, 2014
[Little frog in the mouth: a visual diagnosis?]
Martina Minkov1, Anna Pourkarami2, Peter Franz3,4
1Medizinische Fakultät, Sigmund Freud PrivatUniversität, Wien, Österreich.
Abstract:
Ranula, from the Latin "little frog", is a retention cyst filled with saliva in the oral cavity. Simple ranulas most commonly affect the sublingual gland and typically present as a hemispherical bluish cyst on the floor of the mouth, making it a visual diagnosis. A 7-year-old girl presented with a swelling on the underside of the tongue, an uncommon location for a ranula that made diagnostic assignment difficult. The optimal treatment of a ranula is still controversial in the literature. Many authors favor surgery as the treatment of choice. Our case shows that a watch and wait approach with simple mechanical pressure on the cyst can be sufficient.
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