J Korean Radiol Soc.  1993 Dec;29(6):1260-1265.

CT findings of craniofacial fibrous dysplasia

• Lee SS
• Lee GJ
• Jung MS
• Kim YS
• Kim HK
• Han CY

Abstract

Fibrous dysplasia is a benign bony disorder that contains trabeculae of poorly calcified primitive bone formed by osseous metaplasia. It is also characterized by replacement of normal spongiosa by abnormal fibrous tissues. We retrospectively analyzed the computed tomographic (CT) findings of 29 cases with clinically and radiologically diagnosed craniofacial fibrous dysplasia. In 2 cases, only cranial bones were involved and in 7 cases only facial bones were involved. Involvements of both cranial and facial bones were noted in the remained 20 cases. The commonly involved bones in the decreasing order of frequency were as follows: frontal, sphenoidal, ethmoidal and temporal bones in cranium and maxilla, zygoma, lacrimal bones and mandible in facial bones. Even though plain films are enough to diagnose the fibrous dysplasia, we think that CT is useful in more accurate diagnosis by demonstrating amorphous "ground-glass" appearance in the lesion and defining the exact extent of craniofacial fibrous dysplasia.

MeSH Terms

Diagnosis
Facial Bones
Mandible
Maxilla
Metaplasia
Retrospective Studies
Skull
Temporal Bone
Zygoma