Cyst with Ciliated Epithelium of the Floor of the Mouth: Report of a Case

A 20-year-old man visited us, complaining of a swelling of the floor of the mouth, . which had caused him a strange feeling since his childhood, but had been left alone on account of no subjective symptoms and other troubles. From the clinical standpoint it apparently showed an appearance of dermoid cyst partly associated with a finding of ranula, . while biopsy revealed that it was not a typical type of ranula, showing ciliated epithelium over the internal surface of the cyst wall. As a conclusion, it may be considered to be a cyst related to a duct of Bochdaleck's gland.