• 대한세포병리학회지
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• 제12권2호
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• pp.117-120
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• 2001

Inflammatory myofibroblastic tumor, histologically characterized by the presence of bland-locking spindle cells and infiltration of chronic inflammatory cells, is extremely rare in the gastric wall. We report a case of gastric inflammatory myofibroblastic tumor In a 27-month-old boy. The fine needle aspiration biopsy from the mass showed loose clusters or scattered spindle cells and inflammatory cells, predominantly of lymphocytes and plasma cells. The spindle cells resembled fibroblasts or myofibroblasts. Differential diagnosis from benign and malignant diseases involving abdominal cavity was discussed.

• 대한후두음성언어의학회지
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• 제30권1호
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• pp.57-60
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• 2019

Inflammatory myofibroblastic tumor (IMT) is a rare benign tumor, that is composed of myofibroblastic spindle cells with inflammatory cells. IMTs usually occur in lungs, intestine organs, orbits and paranasal sinuses, however, it may rarely be seen in the larynx. We present two cases of patients with laryngeal IMT that had different causes and prognosis.

• Imaging Science in Dentistry
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• 제36권3호
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• pp.169-175
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• 2006

The Inflammatory myofibroblastic tumor (inflammatory pseudotumor) is a rarely occurring soft tissue lesion of unknown etiology. It can be of any location, but commonly it is found in lungs. It has been considered as a nonneoplastic reactive inflammatory lesion, but nowadays, confusion and dispute about its character is increasing due to its high recurrence rate and metastasis. We present a patient who had been diagnosed with an inflammatory pseudotumor in the right maxilla area, 1 year before visiting our hospital. After that, her pain and swelling did not resolved and she visit our hospital. On radiographic examination, aggressively infiltrative growth of the lesion with destruction of adjacent bony structure was noted. We found unusual aggressiveness of the inflammatory myofibroblastic tumor of the head and neck region. Because the typical behavior of the inflammatory myofibroblastic tumor is not defined yet, we recommend the surgical excision of the lesion and close follow-up.

• Journal of Chest Surgery
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• 제35권6호
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• pp.491-494
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• 2002

염증성 근섬유아세포종은 염증성 가성 종양으로 널리 알려져 있으며, 폐 실질 내의 종괴로 발견되는 경우가 많다. 기관지 내 염증성 근섬유아세포종은 매우 드문 종양으로 극히 적은 보고만이 있을 뿐이다. 5개월 전부터의 기침 증상으로, 13세 여자 환자가 입원하였다. 단순 흉부 X-선 및 흉부단층촬영에서 우하엽 기관지를 막아 폐렴을 일으킨 기관지 내 종괴가 발견되었다. 기관지경 검사에서 젤리 모양의 종괴가 우하엽 기관지를 거의 막고 있는 것이 관찰되었고 조직 검사상 연골성 과오종이 의심되었다. 우하엽 절제술을 시행하였고 최종 병리 결과는 염증성 근섬유아세포종으로 확진되었다. 환자는 수술 후 합병증 없이 퇴원하여 외래에서 추적관찰 중이다.

• 대한세포병리학회지
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• 제11권1호
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• pp.35-39
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• 2000

Since inflammatory myofibroblastic turner was initially recognized in the lung, this tumor has been described in other extrapulmonary sites. In spite of relatively uniform histologic findings in various organs, a rarity in extrapulmonary sites and highly vascular characteristics frequently lead to a misdiagnosis in preoperative radiology and fine needle aspiration cytology. We present a case of inflammatory myofibroblastic tumor occurring in the mesentery of a 4-month-old girl. Fine needle aspiration cytology smear disclosed characteristic spindle cells intermixed with prominent mature plasma cells and lymphocytes. According to the immunohistochemical staining, we recognized that the intervening spindle cells are myofibroblasts which have reactivity for the both actin and vimentin.

• Journal of Chest Surgery
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• 제45권4호
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• pp.263-266
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• 2012

Endobronchial inflammatory myofibroblastic tumor is a rare primary lung disease. A 39-year-old woman with dyspnea and a productive cough underwent complete surgical resection of a small-sized inflammatory myofibroblastic tumor that invaded the left main bronchus and the carina with lung-saving modified left one-stoma-type carinoplasty. We report this case with a review of literature.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제17권2호
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• pp.116-120
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• 2014

Inflammatory myofibroblastic tumor (IMT) is rare mesenchymal solid tumor that consists of proliferating myofibroblasts with an inflammatory infiltrate background. It has a very low prevalence in infants and occurs mainly in children and young adults. IMT are mainly located in the thoracic cavity, but intra-abdominal lesions are rare. IMT can exhibit locally aggressive neoplastic processes and metastases similar to malignancies, so, have clinical importance. Herein, we describe two infantile intra-abdominal IMT cases presenting with incidentally found palpable abdominal mass. A 4-month-old male infant had IMT at the ileal mesentery and a 5-month-old male infant had IMT at liver. Both cases were successfully treated by complete surgical resection without complication or recurrence. Considering the biological behavior of the intermediate type of neoplasm in IMT, we expect good survivals when achieving appropriate surgical resection without adjuvant therapy in infantile intra-abdominal IMT.

• 대한골관절종양학회지
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• 제19권1호
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• pp.14-19
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• 2013

목적: 사지에 발생한 염증성 근섬유모세포성 종양의 특성과 치료 결과에 대하여 알아보고자 하였다. 대상 및 방법: 본 연구는 1999년부터 2012년까지 본원 정형외과에서 치료받은 연부조직 종양 환자 중에서 사지에 발생한 염증성 근섬유모세포성 종양으로 병리학적으로 확진된 5명의 환자를 대상으로 하였다. 결과: 남자가 1예, 여자가 4예였으며, 평균 연령은 44세(37-55세)이고, 평균 추시 기간은 34.6개월(8-87개월)이었다. 5명의 환자 모두에서 외과적 절제술을 시행하였으며 이 중 1명의 환자에서만 광범위 절제연을 얻었고, 3명에서는 변연부 절제연을, 다른 1명에서는 병소내 절제연을 얻었다. 광범위 절제연을 얻지 못한 4명의 환자 모두에서 술 후 평균 10.3개월(8-19개월)에 재발이 발생하였으며, 재발한 4명의 환자 중 2명에서 섬유육종으로의 악성 변화가 관찰되었다. 악성 변화를 보인 2명의 환자 중 1명은 폐, 간 및 림프절로의 다발성 원격 전이가 발생하여 추시관찰 37개월에 사망하였다. 5예의 병변 중 3예에서 종양의 경계가 사지의 주요 동맥에 인접한 소견이 관찰되었으며 1예에서는 종양이 좌골 신경을 침범한 소견이 관찰되었다. 결론: 사지에 발생한 염증성 근섬유모세포성 종양은 주요 신경혈관계와 인접하여 발생하는 경향을 나타내었다. 이 종양은 재발을 잘하며 악성 변화의 가능성이 있으므로 광범위 절제술이 적절한 수술적 치료법이 될 것으로 생각된다.

• 대한두경부종양학회지
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• 제32권2호
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• pp.55-59
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• 2016

Iinflammatory myofibroblastic tumor(IMT) is a benign chronic inflammatory mass composed of proliferative myofibroblasts. It is a space occupying lesion which could potentially covert to malignant tumor. Treatment guideline of the disease has not been established due to its rarity. We demonstrate a 60-year old male who had surgical excision for IMT of the cervical esophagus. During the follow-up period, he revealed recurrent tumor which showed sarcomatous change with distant metastasis. We reported this rare case with review of the literature.

• Archives of Plastic Surgery
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• 제34권3호
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• pp.392-394
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• 2007

Purpose: Inflammatory myofibroblastic tumor(IMT) is characterized by clonal proliferation of myofibroblastic spindle cells and accompanied by lymphoplasmacytic infiltration. IMT is an uncommon lesion reported to arise in various organs, and is believed to be a reactive inflammatory condition. IMT forms a spectrum of lesions ranging from benign, infection-related lesions to low-grade malignancies, capable of local recurrences and rarely distant metastasis. IMT occurs mostly in the lung, but rarely in the craniofacial region. Methods: A 28-year-old male with painless swelling in the medial canthal area was referred to our department for the last 2 months. A 2cm sized mass was palpated. He was treated with complete local excision. Results: In the study by computerized tomography, a $2.0{\times}0.8{\times}1.0cm$ mass was found in the subcutaneous tissue layer. Grossly, the mass was well-circumscribed, smooth-surfaced, flesh colored, and hard. The tumor was well demarcated from the other tissues. Histopathologic examinations showed bland spindle-shaped cells loosely arranged with scattered lymphoid cells. Immunohistochemical examinations demonstrated a positive reactivity for alpha-SMA and a negative reactivity for desmin and CD34. No recurrence was noted 12 months after surgery. Conclusion: Emphasis is given to complete resection of the tumor for both diagnostic and therapeutic purposes. Further evaluation to find other lesions in different sites should be considered. Continued follow-up is recommended.