Definition: A hyperostosis of the hard palate.
Location: Can be seen on any maxillary periapical radiograph.
Shape: Round, Ovoid, Lobular.
Internal: Radiopaque, radiopacity of bone.
Number: Singular but may have a lobular appearance as if it were multiple, but it is a singular entity.
(click image to enlarge)
(as seen on every maxillary periapical)