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Synovial osteochondromatosis of the temporo-mandibular joint

Published online by Cambridge University Press:  29 June 2007

Minoru Nomoto ,
Koichi Nagao ,
Tsutomu Numata ,
Akiyoshi Konno  and
Toshio Kaneko
Minoru Nomoto*
Affiliation:
Department of Otolaryngology, School of Medicine, Chiba University, Ciba, Japan
Koichi Nagao
Affiliation:
Department of Pathology, School of Medicine, Ichihara Hospital, Teikyo University, Chiba, Japan.
Tsutomu Numata
Affiliation:
Department of Otolaryngology, School of Medicine, Chiba University, Ciba, Japan
Akiyoshi Konno
Affiliation:
Department of Otolaryngology, School of Medicine, Chiba University, Ciba, Japan
Toshio Kaneko
Affiliation:
Department of Otolaryngology, School of Medicine, Chiba University, Ciba, Japan
*
Dr Minoru Nomoto, Department of Otolaryngology, School of Medicine, Chiba University, Inohana 1-8-1, Chiba 260, Japan.
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A rare case of synovial osteochodromatosis of the temporo-mandibular joint is presented. Important diagnostic information can be obtained by CT, MRI, 99m Tc bone scan and aspiration biopsy. Observation using a light microscope showed mild cellular atypia, but the hallmarks characteristic of chondrosarcoma were not found. Observation using an electron microscope showed the mature chondrocytes contained a well-developed rough endoplasmic reticulum. Histological evaluation indicated that the present case was benign synovial osteochondromatosis in an early stage.

Keywords

ChondromatosissynovialTemporo-mandibular joint
Type
Clinical Records
Information
The Journal of Laryngology & Otology , Volume 107 , Issue 8 , August 1993 , pp. 742 - 745
Copyright
Copyright © JLO (1984) Limited 1993

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