• 대한구강악안면병리학회지
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• 제42권5호
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• pp.125-128
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• 2018

Myofibroma is a benign tumor composed of fibroblasts and myofibroblasts, occasionally occurring most commonly as a solitary lesion of soft tissue, skin, or bone in children younger than 3 years of age. Solitary lesion of myofibroma is exceedingly rare in adult jaws. This report describes a rare case of myofibroma in the mandible that occurred in a 41-year-old Korean woman.

• Imaging Science in Dentistry
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• 제36권4호
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• pp.211-215
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• 2006

Myofibroma is a rare benign soft tissue tumor that in all ages usually occurs in the head and neck region, and at subcutaneous tissue, but rarely has bone origin within bone. Intraosseous lesions are more often found in childhood. Although intraosseous lesions are relatively common in mandible. Reports for mandible, reports on radiographic findings of myofibroma occurred on the mandible are uncommon. We describe the radiographic appearance on the conventional radiographs and CT of myofibroma of the mandible in a 9-year-old boy. This benign lesion closely resembles to odontogenic cyst or tumor on image.

• 대한소아치과학회지
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• 제30권1호
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• pp.10-14
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• 2003

근유종은 소아에 주로 발생하는 다발성 종양으로 처음에 기술되었지만, 단독으로 발생하는 경우가 더 많고, 어느 연령층에서나 발생한다. 성인과 소아형 모두 비슷한 임상적 특성과 병리조직학적 특징을 갖는다. 이 증례는 9세 남아의 하악에 경계가 명확한 단방성의 방사선 투과성 병소로, 병리조직학적으로 방추형 세포들이 다발을 이루며 증식하며, 일부에는 혈관주피종과 유사한 부위가 관찰되었다. 면역조직화학적으로 종양세포는 vimentin과 smooth muscle actin에 양성, S-100, desmin, cytokeratin AE1/3에 음성이었다. 이 증례에서와 같이 소아에서 단방성 방사선 투과상의 고형성 종괴로 나타나는 경우 근섬유종을 감별진단에 포함시켜야 한다고 생각된다. 환자는 수술 1년이 경과한 현재까지 재발의 소견은 없지만 재발한 경우도 보고되어 있어 철저한 추적 관찰이 필요하며, 현재 #43, 44 치아의 맹출을 유도하는 중에 있다.

• 대한두경부종양학회지
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• 제32권2호
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• pp.9-13
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• 2016

Infantile myofibromatosis is a rare benign neoplasm which is usually found in males. Most cases of the infantile myofibromatosis are discovered before the age of two years and about half of cases are found at muscle, tendon, and soft tissue of head-neck region. However, it is especially uncommon that infantile myofibroma occurs at the pre-auricular area. In current case, we report a twenty two months old male patient with $2.5{\times}1.5cm$ sized pre-auricular mass at right side. It was surgically removed and histologically showed broad bundle of plump myoid spindle cells with eosinophilic cytoplasm and weakly positive smooth muscle actin expression in myoid cells. In three months of follow up, there was no recurrence.

• Advances in pediatric surgery
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• 제14권2호
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• pp.173-177
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• 2008

Sialoblastoma is a rare tumor of salivary gland origin, developing in the fetal or neonatal period. Most tumors arise in parotid gland, and rarely in submandibular gland. Because of its rare incidence, diagnosis of the sialoblastoma in head and neck tumors of children is not easy. The case of a congenital submandibular gland sialoblastoma is presented. A neonate was transferred right after birth due to a submandibular mass. CT scan showed a lobulating mass located posterior to the left submandibular gland, suggesting neurogenic tumor or myofibroma. The tumor was excised easily after division of a duct-like structure connecting with the submandibular gland. The microscopic findings showed the basaloid cells and ductules forming cellular nests, separated by thin fibrous tissue. Immunohistochemical staining was positive for cytokeratin, vimentin and Ki-67, which was consistent with sialoblastoma.