• Title/Summary/Keyword: 근섬유종

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Endobronchial Inflammatory Myofibroblastic Tumor of Right Lower Lobar Bronchus (우하엽 기관지에 발생한 기관지 내 염증성 근섬유아세포종)

  • 강정한;정경영;최성실;홍순창;신동환;김세훈
    • Journal of Chest Surgery
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    • v.35 no.6
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    • pp.491-494
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    • 2002
  • Inflammatory myofibroblastic tumor was widely known as inflammatory pseudotumor, commonly developed as a solid mass in lung. The endobronchial inflammatory myofibroblastic tumor is a very rare case where only a few cases have been reported. We report a 13-year-old girl who had coughing for 5 months. The simple chest X-ray and computued tomography of the chest revealed a mass which obstructed the right lower lobe bronchus and pneumonic consolidation. The fiberoptic bronchoscopic finding was mostly gelatinous, gray-yellowish mass that obstructed the airway of right lower lobe bronchus nearly, and was considered as a chondroid hamartoma pathologically. Right lower lobectomy of lung was performed. The mass was confirmed as a endobronchial inflammatory myofibroblastic tumor The patient was discharged without complication and with outpatient followup.

An Inflammatory Myofibroblastic Tumor that Originated from the Posterior Mediastinum (후종격동에서 발생한 염증성 근섬유모세포종)

  • Song, Dong-Seop;Kim, Ji-Hoon;Chung, Won-Sang
    • Journal of Chest Surgery
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    • v.41 no.1
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    • pp.145-148
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    • 2008
  • An inflammatory myofibroblastic tumor (IMT) is a rare disease and can occur in nearly every site of the body. The usual intrathoracic sites where an IMT has been recorded are the lung and bronchus. An IMT originating from the mediastinum has been rarely reported. A patient with a posterior mediastinal mass that was noticed incidentally on a chest X ray underwent mass extirpation. The pathologic diagnosis was an inflammatory myofibroblastic tumor. The tumor was positive for tuberculosis as determined by PCR. Tuberculosis can be thought to be the causative factor of the IMT in this case.

MYOFIBROMA OF THE MANDIBLE (하악골에 발생한 근섬유종)

  • Yoon, Jung-Hoon;Kim, Su-Gwan;Lee, Sang-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.30 no.1
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    • pp.10-14
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    • 2003
  • 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.

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A Case of Infantile Myofibroma in the Pre-auricular Area (전이개에 발생한 유아성 근섬유종 1례)

  • Kim, Deok Su;Jang, Gyu Ho;Kim, Jeong Kyu
    • Korean Journal of Head & Neck Oncology
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    • v.32 no.2
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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.

Comparison of Intramuscular Fat Composition of Red Muscle and White Muscle (Red Muscle과 White Muscle의 근섬유간 지방질의 조성 비교)

  • Yang, Ryung;Kim, Kee-Tae;Shin, Wan-Chul
    • Korean Journal of Food Science and Technology
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    • v.21 no.4
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    • pp.505-510
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    • 1989
  • Red muscle and white muscle were separated from bovine, porcine and poultry skeletal muscles, respectively. Intramuscular lipids were extracted and fractionated to neutral-, glyco- and phospho-lipid by silica gel chromagraphy and then fatty acid composition were analyzed with gas chromatography. The results obtained were as follows; Total lipid content of red muscle was higher than that of white muscle in case of beef and chicken. In pork, however, total lipid content of white muscle was higher than red muscle The content ratio of neutral lipid to phospholipid revealed a number of distinctions between red and white muscle among animals. There were noteworthy differences in respect of polyunsaturated fatty acid. The intramuscular fat of pork had the higher content of highly polyunsaturated fatty acid such as arachidonic acid in contrast to beef.

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A Case of Pulmonary Inflammatory Myofibroblastic Tumor (폐 염증성 근섬유 아세포종 치험 1예)

  • Na, Kook-Joo;Yu, Ung;Hong, Sung-Bum;Choi, Yong-Sun;Kim, Byong-Pyo;Kim, Sang-Hyung;Ahn, Byong-Hee
    • Journal of Chest Surgery
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    • v.37 no.1
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    • pp.102-104
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    • 2004
  • Inflammatory myofibroblastoma is a solid tumor, occurring mainly to children and young adults, and occupying 0.7% of total isolated pulmonary nodules. Since 1973, several cases about inflammatory myofibroblastoma have been reported. Firstly, this tumor was found in lungs. Then, tumors have been founded and reported in mesentery or cardioesophageal region. Histologically, this tumor can be classified as a benign tumor. However, since this tumor has two characteristics showing malignancy, that is, local invasion and recurrence, malignancy can not be completely excluded. Recently, a patient with pulmonary inflammatory myofibroblastoma underwent surgical resection without any signs or symptoms of recurrence.

Inflammatory Myofibroblastic Tumor of the Lung in a Child -A case report- (소아에시 발생한 폐 염증성 근섬유아세포종 -1예 보고-)

  • Kim Hee-Jung;Park Chang-Ryul;Jung Jong-Pil;Shin Je-Kyoun
    • Journal of Chest Surgery
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    • v.39 no.4 s.261
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    • pp.332-334
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    • 2006
  • Inflammatory myofbroblastic tumor in the lung is a rare tumor. The etiology is not clear. This tumor in children is a benign tumor rarely presented with local invasiveness, recurrence, distant metastasis or malignant changes can occur. The complete surgical resection is chosen as the optimal management. A 12-years-old boy visited the outpatient clinic with a 4 cm sized pulmonary mass in left upper lung field. The patient underwent left upper lobectomy. Histopathologically, inflammatory myofibroblastic tumor was confirmed. The patient was discharged without any problems and there was no evidence of recurrence during 3 months follow-up.

Adult Solitary Myofibroma of the Mandible Mimicking A Periapical Lesion (치근단 병소로 나타난 하악골의 성인 고립 근섬유종)

  • Yoon, Jung-Hoon
    • The Korean Journal of Oral and Maxillofacial Pathology
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    • v.42 no.5
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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.

Secretory and contratile sensory receptor cells in the Sucker of Korean Octopus variabilis (한국산 낙지(Octopus uariabilis) 흡반(sucker)내분비 및 수축성 감각수용 세포)

  • 장남섭
    • The Korean Journal of Zoology
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    • v.35 no.4
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    • pp.414-427
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    • 1992
  • Octopus variabilis의 흡반을 광학현미경과 주사전자현미경 그리고 투과전자현미경을 이용하여 그 미세구조를 관찰하였기에 이에 보고하는 바이다. 또한 내측상피 부위 돌기구 조물 속에서 관찰된 세포들은 핵을 둘러싼 세포들이 공포화 현상으로 인하여 해면처럼 보였다. 이 세포들은 감각과 수축에 관여하는 해면질성인 세포로 생각된다. 외측 상피조직에서는 2종의 분비성인 감각세포(A 및 B형세포)차 2종의 상피성인 감각세포(C 및 D형세포)가 관찰되었다. 분비성인 감각세포는 감각이외에 점액분비 기능을 소지하였으며, 상피성인 감각세포는 상피의 지지와 감각기능을 수행하는 것으로 생각되었다. 흠반을 구성하고 있는 근섬유는 중앙이 기린 도나스 형태로서 10-15개의 종선이 나타났다. 또한 부위에 따라서는 근섬유들은 서로 집결하여 원주형의 근육 기등을 형성하기도 했는데 이들은 신경섬유에 의하여 서로 연결 되고 통제되었다.

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