Fibrous dysplasia

Case contributed by A.Prof Frank Gaillard


Facial lump

Patient Data

Age: 25
Gender: Male

Extensive expansion of the left maxilla with ground glass sclerosis in keeping with known fibrous dysplasia.

The left maxillary sinus is small, and is displaced posteromedially.

Encroachment of the inferior orbit reduces the craniocaudal diameter by approximately 20% (33 mm compared to 41 mm on the right). The affected region measures 6.2 x 5.3 x 6.7 cm (AP x trans x CC). 

A small region of fibrous dysplasia measuring 9 x 11 x 10 mm is seen in the right mandible, at the base of the first molar. 

The no further osseous lesions are identified. A mucus retention cyst is seen in the right maxillary sinus, otherwise the paranasal sinuses and mastoid air cells are clear.


Volume render of the skull.

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Case information

rID: 28129
Published: 14th Mar 2014
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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