Osteoid Osteoma Presenting as a Painful Solitary Skull Lesion: A Case Report

Document Type : Case Report


1 Department of Otorhinolaryngology, Besat Hospital, Hamadan University of Medical Sciences, Hamedan, Iran.

2 Department of Pathology, Besat Hospital, Hamadan University of Medical Sciences, Hamedan, Iran.


Osteomas are asymptomatic and rare slow growing bony tumors in temporal bone, and should be taken into account in differential diagnosis of the osteolytic solitary skull lesions. Sometimes is associated with pain and functional loss. Only a few cases have been reported.
Case Report:
We describe a case of an osteoid osteoma of the temporal bone (mastoid) in a 31-year-old woman presenting as painful solitary tumor of calvarium and its management. The resection of whole bony tumor was performed using the retroauricular approach. Pathologic evaluation revealed the osteoid osteoma. 
Although osteoid osteoma of the temporal bone is rare, it should be taken into account in differential diagnosis of the osteolytic skull lesions. Treatment is indicated for symptomatic osteomas or cosmetic reasons. 


1. de Chalain T, Tan B. Ivory osteoma of the craniofacial skeleton. J Craniofac Surg 2003; 14(5):
2. Das LCA, Kashyap GCR. Osteoma of the mastoid bone – a case report. MJAFI 2005; 61:86-7.
3.  Smud D, Augustin G, Kekez T, Kurda E, Majerovicc M, Jelincicz Z. Gardner's syndrome: Genetic testing and colonoscopy are indicated in adolescent and young adults with cranial osteomas. A case report. World J Gastroenterol 2007; 13 (28): 3900-3.
4. Guérin N, Chauveau E, Julien M, Dumont JM, Meignarques E. Osteoma of the mastoid bone: report of two cases. Laryngol Otol Rhinol. 1996;117: 127-32.
5. Burton DM, Gonzalez C. Mastoid osteomas. Ear Nose Throat J 1991; 70(3):161-2.                                                                            
6.  D'Ottvai LR, Piccirillo E, De Sanctis S, Cenqua N. Mastoid osteomas: review of the literature and presentation of two clinical cases. Acta Otorrinolaringol Ital 1997; 17(2): 136-9.
7. Gil Tutor E. Osteoma of the mastoid. An Otorrinolaringol Ibero Am 1991; 18(4): 325-30.
8. Van Dellen JR. A mastoid osteoma causing intracranial complications: a case report. S Afr Med J 1977; 51(17): 597-8.
9. Viswanatha B. Extracanalicular osteoma of the temporal bone. Ear Nose Throat J 2008; 87(7):381-3.
10. Meher R, Gupta B, Singh I, Raj A. Osteoma of occipital bone. Indian J Surg. 2004;66:365-7.
11. Harley EH, Berkowitz RG. Imaging case study of the month, osteoma of the middle ear. Ann Otol Rhinol Laryngol 1997;106:714.
12. eMedicine [homepage on the Internet]. New York : The Association; Updated: May 14, 2013 Available from: http://emedicine.medscape.com/article/1253443-overview#aw2aab6b4.
13. Denia A, Perez F, Rinaldo R, Canalis R, Graham MD. Extracanalicular osteomas of the temporal bone. Arch Otolaryngol. 1979;105:706-9.
14.   Probst LE, Shankar L, Fox R. Osteoma the mastoid bone. J Otolaryngol 1991;20(3):228-30.