| MYOFIBROMA OF THE MANDIBLE |
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| 하악골에 발생한 근섬유종 |
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윤정훈1, 김수관2, 이상호3 |
1조선대학교 치과대학 구강병리학교실
2조선대학교 치과대학 구강악안면외과학교실
3조선대학교 치과대학 소아치과학교실 |
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| Abstract |
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Myofibroma is a rare spindle cell neoplasm that consists of myofibroblsasts. Although it was originally described as a multicentric tumor process affecting infants and young children, it is now recognized that most cases of the tumor are soliatary and that it can occur at any age. This case is a myofibroma involving the right mandibular body in a 9-year-old boy. Radiographic examination revealed a relatively well-demarcated radiolucent lesion surrounding the impacted right mandibular canine and first premolar crown. The histologic sections composed of interlacing bundles of spindle cells with tapered or blunt-ended nuclei admixed with a foci of hemangiopericytoma-like appearance. Immunohistochemical staining demonstrated a positive reaction to vimentin and smooth muscle actin, but they are negative for desmin and S-100. The presence of well circumscribed radiolucent solid lesion in children as observed in this case, differential diagnosis of myofibroma must be included. In this case, there was no recurrence 6 months after enucleation and eruption guide of the impacted tooth is ongoing now. |
| Key Words:
Myofibroma, Child, Mandible |
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