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Rare giant frontal sinus osteoma mimicking fibrous dysplasia

  • R P Exley (a1), A Markey (a2), S Rutherford (a3) and R K Bhalla (a4)



To present the first report of a giant frontal sinus osteoma treated by excision and single-stage reconstruction with custom-made titanium cranioplasty and left orbital roof prostheses.

Case report:

A 31-year-old man with a history of chronic frontal sinusitis presented with a deforming, painless, midline forehead swelling of 11 years' duration, which had been treated unsuccessfully in Nigeria. Differential diagnosis included both benign and malignant bony tumours. Computerised tomography revealed a giant bony frontal sinus tumour extending beyond the sinus roof and breaching the left orbit, consistent with fibrous dysplasia. Given the extent of the tumour, open craniectomy was performed for surgical extirpation. Histological analysis identified multiple osteomas. This surgical approach achieved excellent cosmesis, with no evidence of recurrence at 12-month follow up.


Forehead swelling may pose diagnostic and management dilemmas for the ENT surgeon; however, effective management is facilitated by a multidisciplinary approach.


Corresponding author

Address for correspondence: Mr R K Bhalla, Department of Otolaryngology – Head and Neck Surgery, Manchester Royal Infirmary, Oxford Road, Manchester M13 9WL, UK Fax: (0161) 276 5003 E-mail:


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Presented at the 142nd Semon Club meeting, 10th November 2011, Guy's Hospital, London, UK.



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