Journal of Korean Academy of Oral and Maxillofacial Radiology (치과방사선)
- Volume 29 Issue 2
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- Pages.533-547
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- 1999
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- 1225-049X(pISSN)
Malignant Fibrous Histiocytoma in the Infratemporal Fossa
측두하와에 발생한 악성 섬유성 조직구성
- Lee Kyung-Hee (Department of Oral and Maxillofacial Radiology & Dental Research Institute. College of Dentistry, Seoul National University) ;
- Heo Min-Suk (Department of Oral and Maxillofacial Radiology & Dental Research Institute. College of Dentistry, Seoul National University) ;
- Lee Sam-Sun (Department of Oral and Maxillofacial Radiology & Dental Research Institute. College of Dentistry, Seoul National University) ;
- Choi Soon-Chul (Department of Oral and Maxillofacial Radiology & Dental Research Institute. College of Dentistry, Seoul National University)
- 이경희 (서울대학교 치과대학 구강악안면방사선학 교실 및 치학연구소) ;
- 허민석 (서울대학교 치과대학 구강악안면방사선학 교실 및 치학연구소) ;
- 이삼선 (서울대학교 치과대학 구강악안면방사선학 교실 및 치학연구소) ;
- 최순철 (서울대학교 치과대학 구강악안면방사선학 교실 및 치학연구소)
- Published : 1999.08.01
Abstract
Malignant fibrous histiocytoma is one of the most common soft tissue sarcomas in late adult life. but its incidence in oral and maxillofacial region is extremely rare. We report a case of malignant fibrous histiocytoma which occurred in the infratemporal fossa. Conventional radiograph of this case showed an ill-defined radiolucent lesion in the alveolar bone of the right maxillary first molar area. the lateral wall of the maxillary sinus. and the ascending ramus of mandible. MRI demonstrated a well defined mass of intermediate signal intensitiy in Tl weighted images but T2 weighted images showed two distinctive regions of different characteristics. Upper portion of the lesion was of hyperintense signal but (at) lower portion, the signal intensity decreased clearly, which might mean that this lesion(mass) is composed of two different subtypes though it couldn't be confirmed by histopathological examination. Biopsy was taken the lesion as only in the soft tissue of the maxillary posterior alveolar region and confirmed the storiform-pleomorphic type of malignant fibrous histiocytoma. Histopathological subtype was well consistent with the relatively aggressive imaging findings of that region. We expect more detailed analysis of the nature of malignant fibrous histiocytoma with improvement of the imaging modality and the identification of the relationship between diagnostic imaging and histopathologic findings.