• Journal of Chest Surgery
• /
• v.35 no.3
• /
• pp.251-253
• /
• 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
• /
• v.34 no.11
• /
• pp.887-890
• /
• 2001

Neuroendocrine tumor in thymus is rare and has poor prognosis due to frequent recurrence and distant metastasis. Approximately half of thymic carcinoids are hormonally active and Cushing\`s syndrome is seen in 33% of affected patients. Treatment of choice is surgical excision of tumor and role of chemotherapy and radiotherapy is controversal. We report 2 cases of thymic neuroendocrine carcinoma associated with Cushing\`s syndrome.

• Journal of Chest Surgery
• /
• v.35 no.1
• /
• pp.73-76
• /
• 2002

Adenoid cystic carcinoma is a very slowly growing and directly invasive cancer. The treatment of choice is complete surgical resection but if major complications associated with remaining carcinoma occur, aggressive conservative treatment to prevent complication is able to gain long term survival even though remaining carcinoma metastases to other organs. We experienced a case of surgical treatment of uncontrollable fever that caused by multiple lung abscesses due to obstruction of left main bronchus with adenoid cystic carcinoma. The post operative course was uneventful for 4 months to now.

• Journal of Chest Surgery
• /
• v.39 no.6 s.263
• /
• pp.495-497
• /
• 2006

Hemangiopericytoma is a rare vascular tumor derived from the pericyte and usually occures in the lower extremities and the retroperitoneum. Complete excision is treatment of choice. Regular follow up is strongly recommended due to its potential malignancy which is recurrence and metastasis. We experienced surgical excision of metastatic pulmonary hemangiopericytoma from retroperitoneal hemangiopericytoma completely excised 10 years ago.

• Journal of Chest Surgery
• /
• v.33 no.11
• /
• pp.925-928
• /
• 2000

식도 중복증은 매우 희귀한 식도의 양성종양으로 증상 발현도 매우 드문 질병이다. 이 질병은 태생 6주에 소화기 내강이 상피세표의 증식으로 막히게 되고 세포벽에 공포가 생겨 점차 합쳐 장의 긴축을 따라서 길게 배열되는 과정에서, 공포가 독립적으로 나타나 다른 내강을 형성하여 발생한다. 본원 흉부 외과에서는 식도 내강으로 천공된, 식도중부 및 하부에 걸쳐 발생한 관상의 식도 중복증을 치험하였기에 문헌 고찰과 더불어 보고하는 바이다.

• Proceedings of the Korean Information Science Society Conference
• /
• 2011.06c
• /
• pp.365-368
• /
• 2011

흉부 CT 영상은 각종 흉부 질환의 진단에 널리 사용되고 있으며, 영상 분석 기술을 이용하여 암이나 다양한 형태의 종양 등의 관심 영역(region-of-interest)을 자동으로 탐지하는 기법들이 최근 많이 연구되고 있다. 본 논문에서는 흉부 CT 영상에서 연속된 여러 장의 2D 영상의 변화를 분석하여 중요 관심 영역인 노듈(nodule)을 찾는 방법을 제안한다. 인접 영상에서의 노듈의 연속성과 크기의 변화, 모양, 밝기의 특징을 분석하여 노듈을 검출하였고, 실험 결과, 상당한 정도의 정확도를 보였다. 향후 추가적인 연구를 통하여 실제 환경에서도 활용 가능할 것으로 기대된다.

• Journal of Chest Surgery
• /
• v.32 no.2
• /
• pp.151-157
• /
• 1999

Background: Increasing evidences from experimental studies indicate that apoptosis may be inversely related to angiogenesis in tumor progression. Material and Method: To explore how apoptosis correlates with tumor angiogenesis, we measured the apoptotic index(AI) using the terminal deoxynucleotidyl transferase method(Apop Tag In Situ Apoptosis Detection Kit, ONCOR) and the intratumoral microvessel density using the anti-CD31 monoclonal antibody in non-small cell lung cancer. Result: Statistical analysis revealed an inverse correlation between AIs and intratumoral microvessel densities in squamous cell lung carcinoma(Spearman rank correlation coefficient r=- 0.229, p=0.047). Conclusion: The results of this study demonstrated that the amount of apoptosis in squamous cell lung carcinoma may be influenced by the extent of neovascularization. This suggests that tumor angiogenesis may contribute to a reduction of apoptosis in tumor cells.

• Journal of Chest Surgery
• /
• v.40 no.4 s.273
• /
• pp.317-320
• /
• 2007

Neurogenic tumors are the most common posterior mediastinal tumors and accounting for $19{\sim}39%$ of all mediastinal tumors and 75% of all posterior mediastinal tumors. Neurofibromatosis is an autosomal dominant disorder with variable expression of tumors, including neurologic tumors of the peripheral nerves, nrve roots, and plexi. A posterior mediastinal neufibroma in neurofibromatosis patients is rare. We report here a case of posterior mediastinal neurofibroma in a patient with type 1 neurofibromatosis.

• Journal of Chest Surgery
• /
• v.32 no.1
• /
• pp.88-91
• /
• 1999

Leiomyoma of the bronchus is a very rare, benign tumor of the lung. We herein report a case of endobronchial leiomyoma which was treated by sleeve bronchoplasty without resection of the lung and without any complications. A 35-year-old man was admitted to our hospital complaining of stridor. Bronchoscopy revealed a round, hypervascular and smooth tumor nearly obstructing the left main bronchus at 1.5 cm distal portion from the carina. Biopsy was not performed for fear of massive hemorrhage. A sleeve resection of left main bronchus including the tumor and end-to-end anastomosis were performed. The histologic diagnosis was leiomyoma. The early diagnosis and appropriate surgical treatment to preserve the pulmonary function are important points of consideration.

• Journal of Chest Surgery
• /
• v.40 no.2 s.271
• /
• pp.147-150
• /
• 2007

Desmoplastic small round cell tumor (DSRCT) is rare and a recently described, poorly differentiated malignant tumor and it usually presents with widespread intra-abdominal involvement. We report a case of DSRCT arising form the mediastinum which was treated with multimodality anticancer therapy in 15 year-old girl.