Abstract
Simple bone cyst (SBC) of the jaws is uncommon, representing approximately 1% of all jaw cysts. It is often accidentally discovered on routine dental examination as it is asymptomatic in most of cases. In this report, we discuss a case of SBC in a 16 years old female who presented in our department for correction of her mal-aligned teeth. On routine x-ray for orthodontic treatment, a well defined, unilocular radiolucent area approximately 3x1cm in size with scalloped borders on the left body of mandible expanding from distal surface of 34 to distal surface of 37 was discovered. Surgical exploration was required for both diagnostic and definitive treatment. The operative finding was hollow cavity without any epithelial lining.
Highlights
Simple bone cyst (SBC) is generally a single lesion without an epithelial lining, surrounded by bony walls and either lacking contents or containing liquid and/or connec ve ssue.[1]
SBC is known by various names such as trauma c bone cyst, solitary bone cyst, hemorrhagic cyst, extravasa on cyst, unicameral bone cyst, idiopathic bone cavity.[4]
Several theories of e ology of SBC have been given such as (1) The theory of trauma c-hemorrhagic cyst, (2) The theory that bone cysts represent bone tumors which have undergone cys c degenera on, (3) The theory that cysts are a result of faulty calcium metabolism, (4) The theory of marrow necrosis due to ischemia, (5) The theory that these cysts are the end result of low-grade infec on and (6) The theory of ostcoclasis resul ng from a disturbed circula on(not hematoma), caused by trauma crea ng an unequal balance of osteoclasis and repair of bone.[5]
Summary
Simple bone cyst (SBC) is generally a single lesion without an epithelial lining, surrounded by bony walls and either lacking contents or containing liquid and/or connec ve ssue.[1]. KEYWORDS Cure age, mandible, radiolucent, simple bone cyst
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