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Juxtacortical Osteogenic Sarcoma of Chondroblastic Type on the Maxilla

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Abstract

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#ÃÊ·Ï#
39-year-old female had been treated far the exophytic mass on buccal aspect of the
left maxillary posterior area 2 years and 8 months ago. Tentative diagnosis was
obtained as fibrous dysplasia on clinical and radiographic examinations and
histopathologic findings revealed as osteochondroma after bone trimming at that time.
She revisited for the treatment of recurred lesions. We reviewed this case with clinical,
radiologic and histopathologic standpoints retrospectively, and came to a conclusion that
the tumor primarily occurred was juxtacortical osteogenic sarcoma and recurred due to
inadequate treatment and then expanded over intramedullary This case shows that the
diagnosis of osteosarcoma should take account of the history, clinical, radiographic and
histopathologic findings and it requires attentive follow up check.
Retrospectively reviewed results were as follows ;
At first visit, oral examination rovealed a bony hard swelling on the buccal aspect of
the left maxillary posterior area. Radiographically, a dense radiopaque mass was noted
on the site. The lesion showed hot uptake of 99mTc-MDP. Histopathologic
diagnosis was done as osteochondroma, but it was considered as osteogenic sarcoma
when compared with the recurrent lesion.
When she revisited for the treatment of multiple bony swelling on the left maxilla,
radiograms showed typical features of malignancy such as widening of periodontal
ligament space and sunray appearace, and coincided with benign characters as follows ;
relatively well circumscribed lesion and expansion and displacement of the adjacent
structures. Finally, histopathologic findings of the lesion was well differentiated
chondroblastic osteogenic sarcoma.

Å°¿öµå

juxtacortical osteosarcoma; maxilla;

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