Giant ivory frontoethmoidal osteoma with orbital extension: : a case report
Giant ivory osteoma
Abstract
Osteomas are the slow growing benign bone tumors usually found incidentally on imaging.
Paranasal sinus osteomas are usually found incidentally in up to 3% of the CT examinations with
a peak incidence between the fourth and sixth decades with a male predilection. It most
frequently involves the frontal sinuses in 80 % of the cases followed by ethmoid air cells,
maxillary sinus and rarely sphenoid sinus. Most paranasal sinus osteomas are asymptomatic.
They may become symptomatic either due to direct mass effect or obstruction of normal sinus
drainage. Imaging including CT and MRI plays a pivotal role in accurately diagnosing the
lesions and to evaluate the overall extent of the disease process. Surgical approaches should be
customized for each patient and total resection should be the operative goal. Here we present a
case of a gaint frontoethmoid ivory osteoma in a 13 year old boy.
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