title: Ankle patella: a report of a large accessory bone in the ankle: a case report.
abstract: BACKGROUND
  Sesamoids are ovoid bones with variable size and shape in the course of tendons, can be found in different parts of skeletal system.
  
  
  METHODS
  We report a case of 61-year-old woman in whom we observed a large accessory bone located in the anterior aspect of the left ankle joint. Since such accessory bones are found very infrequently, their presence may cause some diagnostic confusion.
  
  
  CONCLUSIONS
  Regarding complaints in foot area one has to be familiar with such bones in order to make a correct diagnosis.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Tabriz University (Medical Sciences), Imam Reza Hospital, Daneshgah Street, Tabriz, Iran. salekzamaniy@tbzmed.ac.ir
authors.forename: Yaghoub
authors.initials: Y
authors.lastname: Salekzamani
authors.forename: Abolhassan
authors.initials: A
authors.lastname: Shakeri-Bavil
authors.forename: Nariman
authors.initials: N
authors.lastname: Nezami
authors.forename: Yousef
authors.initials: Y
authors.lastname: Houshyar