• Journal of Chest Surgery
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• v.37 no.11
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• pp.963-966
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• 2004

A rare case of schwannoma involving lower thoracic esophagus is presented. A 64-year-old male was seen with slowly progressing dysphagia for 2 years. Large sized submucosal tumor was found by endoscopy and chest CT. On surgery, tumor was very solid and tightly adherent to the adjacent tissue. Esophagectomy and esophagogastrostomy was done.

• Journal of Chest Surgery
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• v.34 no.5
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• pp.430-433
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• 2001

폐에 발생하는 원발성육종은 모든 연령측에서 매우 드물고 종야잉 꽤 커질 때 까지 증상이 없는 경우가 있다. 갑작스런 흉통을 주소로 내원한 50세 여자는 자발성 혈흉을 동반한 폐종양이 발견되어 수술을 시행하였다. 수술은 우상엽절제술과 임파절곽청술을 시행하였고 술후 병리조직학적 검사에서 섬유육종으로 진단되었다.

• Journal of Chest Surgery
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• v.34 no.2
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• pp.198-201
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• 2001

지방모세포종은 태생기 지방조직에서 기원하는 드문 양성종양으로 대부분 소아기에 발생하는데 이 종양의 약 70%는 사지에서 나타나고 간혹 다른 부위에서 보고되기도 한다. 저자들은 좌측 후종격동과 좌측 쇄골상부에 양성 지방모세포종을 보인 3세된 남아를 치험한바 있다. CT 소견상 지방을 함유한 종괴가 정상적인 흉강내 구조물을 누르고 있었고, 쇄골상부 및 종격동으로부터 합병증없이 절제되었다. 종괴는 황색을 띠었으며, 병리조직검사상 지방모세포종으로 진단되었다.

• Journal of Chest Surgery
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• v.28 no.12
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• pp.1192-1196
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• 1995

As reported in the literature, extraskeletal mesenchymal chondrosarcoma is a rare malignant tumor of soft tissue, and it has a unique, distinctive histologic picture and poor prognosis.The common sites are the orbit, the cranial dura mater, the neck, the thigh, the leg, the chest wall, and the retroperitoneum. Radical excision of the tumor seems to be the primary treatment.We report experience with a very rare case of extraskeletal mesenchymal chondrosarcoma in the posterior mediastinum.

• Journal of Chest Surgery
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• v.35 no.3
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• pp.251-253
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• 2002

Giant cell tumor rarely occurs in ribs. Usually it is located in the posterior arc. We reported a very rare case of primary giant cell tumor of rib in the anterior arc with review of literatures.

• Journal of Chest Surgery
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• v.25 no.11
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• pp.1265-1268
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• 1992

Primary tumors of the heart are extremely rare, and about 25 per cent of all primary cardiac tumors are malignant. Recently We experinced three cases of primary malignant tumor; malignant fibrous histiwytoma, carcinosarcoma, and synovial sarcoma, These three cases involved 2 men and 1 woman. There was one operative death, and two operative survivors died of metastatic disease at 12 months postoperatively in spite of chemotherapy and radiotherapy. We report these three cases of primary malignant cardiac tumors with review of the literatures.

• Journal of KIISE
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• v.43 no.3
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• pp.353-361
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• 2016

During image-guided radiation treatment of lung cancer patients, it is necessary to track the tumor motion because it can change during treatment as a consequence of respiratory motion and cardiac motion. In this paper, we propose a method for tracking the motion of the lung tumors based on the three-dimensional image information from planning 4D MDCT and treatment 4D CBCT images. First, to effectively track the tumor motion during treatment, the global motion of the tumor is estimated based on a tumor-specific motion model obtained from planning 4D MDCT images. Second, to increase the accuracy of the tumor motion tracking, the local motion of the tumor is estimated based on the structural information of the tumor from 4D CBCT images. To evaluate the performance of the proposed method, we estimated the tracking results of proposed method using digital phantom. The results show that the tumor localization error of local motion estimation is reduced by 45% as compared with that of global motion estimation.

• Journal of Chest Surgery
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• v.31 no.7
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• pp.735-738
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• 1998

Intracardiac hemangiomas are very rare primary cardiac tumor and there have been at least 37 reports of surgically resected cardiac hemangiomas. Most cardiac hemangiomas are asymptomatic. In symptomatic patients, symptoms are related to the location of tumor and outflow tract obstruction or obstruction of inferior and/or superior vena cava. Sudden death may occur due to conduction disturbances. The principle of treatment is surgical resection, and the prognosis is dependent upon the size, location and multiplicity of the tumor. A 40 year old man was admitted due to chest contusion and was found to have an intracardiac mass during echocardiographic examination. The mass was successfully removed and pathologic examination showed benign hemangioma. The patient was recovered uneventfully in postoperative period and was followed up for 1 year without evidence of recurrence.

• Journal of Chest Surgery
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• v.32 no.9
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• pp.840-843
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• 1999

We report a case of a resection of very large intracavitary metastatic malanoma causing obstruction of the right ventricular inflow and outflow tract of the heart. A 49-year-old woman with dyspnea and generalized edema was seen. Echocardiography reveal an intra cavitary mass occupying the entire right ventricle and pericardial effusion. The lesion was palliatively resected using a cardiopulmonary bypass and was confirmed as a malignant melanoma. The patient is alive and improved symptomatically 30days after the operation.

• Journal of Chest Surgery
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• v.30 no.3
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• pp.353-353
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• 1997

Localized fibrous tumor of the pleura is a rare condition. Most follow a benign course and they are round as an incidental finding during routine chest X-ray. A small proportion of these tumors are malignant and have characteristic clinical and histopathological features. In this paper, we report three cases of localized fibrous tumors of the pleura, one malignant associated with asymptomatic hypoglycemia, the others benign. In a malignant case, the tumor was reseated through thoracotomy and the hypoglycemia was relieved immediately. In two benign cases, tumors on small pedicles were resected using video-assisted thoracic surgical technique.