title: An unusual foreign body in the mastoid process.
abstract: The interest in reporting this case is the unusual manner in which the foreign body entered the mastoid process without any clinical symptoms and remained covered by the skin from outside. Plastic refill of the dot pen (metallic end) pierced the mastoid bone in a child is rather atypical due to a fall.
authors.affiliation: Shri Vishudhanand Hospital & Research Institute, Calcutta.
authors.forename: J N
authors.initials: JN
authors.lastname: Gurtu
authors.forename: B K
authors.initials: BK
authors.lastname: Jha