You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A ranula is most appropriately described by which of the following statements? and explain in detail?
Ranula is a cystic swelling in the floor of the mouth due to the obstruction of one or more ducts of the sublingual gland. It does not always represent a mucus retention cyst, it is more commonly a mucus extravasation cyst. It is neither a type of Epulis nor a type of thyroglossal cyst. Ref: The Medical Student's Vade Mecum: or Manual of Examinations upon Anatomy. By George Mendenhall, Page 362; A Manual of Examinations By John Livingston Ludlow, Page 355; Bailey 25th Edition, Page 754; Colour Atlas of oral Diseases' by Laskaris (Threme) 1999, Page 88