RT Journal Article SR Electronic T1 An unusual case of mastoid osteoma JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 57 OP 59 VO 9 IS 1 A1 Al-Maddah, Jihan A. A1 Ismail, Sami S. YR 2004 UL http://nsj.org.sa/content/9/1/57.abstract AB We present a case of mastoid process osteoma with a long history of mastoid mass. A 36-year-old lady presented with a 15-year history of slowly growing painless mass behind the left ear. The diagnosis of mastoid osteoma was confirmed on the basis of computerized tomography (CT) scan and postoperative histology result of the mass. The patient was treated surgically and followed up by postoperative CT scan, which showed that the disease was completely removed. Surgical excision is commonly carried out for cosmetic purposes.