Ranula is a term to indicate rather roughly a mucous retention cyst occurring in the floor of mouth, which is caused by passing disorder of saliva in the submaxillary duct or sublingul one. The developmental mechanism of the most of ranula is known to be salivary extravasation from an injured duct, whose cause is most commonoly described as trauma, followed by inflammation, foreign body. This report describes a case of ranula whose development should be concerned with sialolithiasis. The

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... , a 40-year-old man, visited us with a chief complaint of a swelling on left side