Osteosarcoma of the mandible in an aged person

Abstract

A rare case of an osteosarcoma of the mandible in a 75-year-old person was reported, and the literature on those 75 years and older were reviewed. The clinical, radiological and histopathological findings were similar to those of cases in younger people. In accordance with an increase in the older population, the number of secondary osteosarcomas has increased, but osteosarcoma of the jawbone in those 75 years and older is still very rare.

Study on Calcified Structure of Sialolith in Duct as a Key to Know How to Prevent Stone Formation

“…Almost all showed similar structure and composition to those of the already reported for sialolith, as calcification of biological apatite [1][2][3][4][5]. However, four samples were somewhat different in composition and structure, and one special sample from the duct showed the unique shape, inside structure and composition.…”