Idiopathic bone cavity. A report of recurrent lesions and their management.

Idiopathic bone cavity is a lesion that has been described as a bony cavity lacking an epithelial lining. Other names have been used, which are not really descriptive of this process. We present a case that involved bilateral idiopathic bone cavities that were treated initially by surgical exploration. Both lesions recurred and were treated with a second procedure consisting of exploration and grafting with platelet--rich plasma and porous hydroxyapatite. The lesions have not recurred 14 months following the second surgery.