1986 Volume 32 Issue 5 Pages 795-798
In a case of a thyloglossal duct cyst and a epidermoid cyst, the conponents within the cyst fluid and the structure of the epithelial cyst wall are investigated. Some differences are noted between the two cysts. It is suggested that the difference between the components within the cyst fluid is derived from the difference between the structures of the epithelial cyst wall. This investigation shows that it is possible by examing the components within the cyst fluid to determine the differential diagnosis of the cystic diseases.