ADAMANTINOMA

Abstract

A recent acquisition of the College of Physicians and Surgeons is a large adamantinoma of the lower jaw with a history of fifty-one years' duration. This type of tumor is noted for its slow, persistent growth, but as this history is the longest that we can find on record, the case is presented as one of unusual interest. Adamantinomas are relatively rare tumors, usually occurring in young people. Grossly they are either solid masses of pale slimy tissue or nodular, part solid and part cystic. They are found within the bone of either the upper or lower jaw, much more frequently in the latter, often in the region of an unerupted tooth, and as they grow cause an expansion of the outer shell of bone. Microscopically, they show a stroma of either adult fibrous tissue or embryonal tissue, similar to that seen in the dental papillae, in which are embedded