57 Jaw bone conditions: Fibro-osseous lesions
Figure 57.1a Periapical osseous dysplasia (early).
Figure 57.1b Periapical osseous dysplasia (mature).
Figure 57.1c Focal osseous dysplasia histology.
Figure 57.2a Cherubism.
Figure 57.2c Cherubism.
Figure 57.3a Fibrous dysplasia.
Figure 57.3b Fibrous dysplasia.
Figure 57.3c CT fibrous dysplasia.
Figure 57.3d Fibrous dysplasia.
Figure 57.4 Paget disease.
Box 57.1 Fibro-osseous lesions.
Cemento-osseous dysplasia (osseous dysplasia)
Cherubism
Fibrous dysplasia
Hypercementosis
Ossifying fibroma
Paget disease of bone
Fibro-osseous lesions are a group of conditions characterized by replacement of normal bone by a proliferating fibrous stroma which forms varying amounts of woven bone spicules and cementum-like material (Box 57.1).
Osseous dysplasia, cemento-osseous dysplasia (COD), periapical cemental or cemento-osseous dysplasia (PCD)
Osseous dysplasia is a fibro-osseous lesion more common in females of African heritage during fourth and fifth decades, presenting with radiolucent and radiopaque lesions at the apices of vital teeth (periapical type), which may be isolated (focal) or multi-quadrant (florid). Lesions, which usually involve the m/>
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