Gardner syndrome: presurgical planning and surgical management of craniomaxillofacial osteomas.

Gardner syndrome, a variant of familial adenomatous polyposis, is an autosomal dominant genetic disease characterized by the combined presence of multiple intestinal polyps and extraintestinal manifestations. The extraintestinal manifestations include multiple osteomas, connective tissue tumors, thyroid carcinomas, and hypertrophy of the pigmented epithelium of the retina. Osteoma is a benign neoplasm of bone tissue characterized by slow continuous growth that usually affects the long bones and cranial bones and is a major symptom for Gardner syndrome. The authors report the extraintestinal lesions affecting the maxillofacial regions in 2 male patients (father and son) with Gardner syndrome. The presurgical planning and surgical management of these lesions are described.