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Desmoplastic Fibroma of the Mandible

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Abstract

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#ÃÊ·Ï#
Desmoplastic fibroma is a rare benign intraosseous fibroblastic tumor, which is locally
aggressive. It is osseous counterpart of soft tissue fibromatosis. The authors experienced
the patient who complained persistent mouth opening limitation with mild swelling on
the left mandibular angle area. After careful analysis of clinical, radiological and
histopathological findings, we diagnosed as desmoplastic fibroma of the mandible.
The results were as follows :
1. Main clinical symptoms were mouth opening limitation which had been persistent
for 9 months and mild swelling on the left mandibular angle area.
2. Radiographs showed the radiolucent lesion and expansion of lingual cortex CT
finding is homogeneous soft tissue mass with expansion of left mandibular ramus.
Destruction of medial wall of ramus and invasion to adjacent soft tissue is also seen.
3. Histopathologically, plump spindle shaped fibroblasts arranged in bundles or
fascicles are observed. The cells of tumor are infiltrating into muscle fiber with
destruction of bony trabeculae and merged with surrounding salivary gland.

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desmoplastic fibroma; mandible;

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