• Tuberculosis and Respiratory Diseases
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• v.50 no.5
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• pp.557-567
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• 2001

Background : Tumor angiogenesis is required for tumor growth and metastasis. In this study, we investigated the correlation between the intensity of angiogenesis and stage, nodal status, histologic type, metastasis and survival rate of non-small cell lung cancer. Method : Formalin fixed, paraffin embedded surgical specimens of 45 patients who had surgically resected primary non-small cell lung cancers without pre or post operative adjuvant chemotherapy or radiotherapy were examined. The microvessel count(MVC) was demonstrated by immunohistochemical staining for CD31(platelet endothelial cell adhesion molecule, PECAM). Results : Microvessel counts(MVCs) in stage IIIA and IIIB were higher than in stage I and II(p<0.05). The MVC in patients with lymph node metastasis was higher than that in patients without lymph node metastasis, although the difference was not statistically significant(p>0.05). However, in adenocarcinoma, the MVC in patients with lymph node metastasis was significantly higher than that seen in patients without lymph node metastasis(p<0.05). The MVC in adenocarcinoma was higher than that in squamous cell carcinoma(p<0.05). The difference between the MVCs of adenocarcinoma and squamous cell carcinoma was not statistically significant in stage I and II or N0 stage(p>0.05). However, in stage IIIA and IIIB or N1~3 stage, the MVC in adenocarcinoma was higher than that in squamous cell carcinoma(p<0.05). MVC was more increased when metastasis developed within 12 months. In the same histologic type and stage, the duration of survival time in patients with high MVC was shorter than in patients with low MVC, however the difference was not statistically significant(p>0.05). The survival rate in patients with high MVCs was lower than that in patients with low MVCs(P<0.05). Conclusion : In non-small cell lung cancer, MVC correlated relatively well with pathologic stage, nodal status(limited in patients with adenocarcinoma), histologic type, postoperative metastasis and survival rate. However, in the same histologic type and stage, MVC was not significantly related to the duration of survival. Therefore the assessment of the intensity of angiogenesis in non-small cell lung cancer may be helpful in predicting prognosis and in selecting patients for systemic adjuvant therapy of potential metastasis according to the results.

• Journal of Chest Surgery
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• v.32 no.2
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• pp.151-157
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• 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
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• v.39 no.6 s.263
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• pp.495-497
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• 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
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• v.30 no.6
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• pp.631-635
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• 1997

혈관에서 기원되는 종양은 혈관외피 세포로부터 발생되는 종양 혈관외피종과 glomus tumor)관 혈관내피 세포로부터 발생되는 종양(를상피 혈관내피종)의 두가지로 구분된다. 이들은 매우 드물게 발생되며 악성종양의 특성을 가지고 있는데, 폐에서 발생된 경우에는 무증상의 작은 종괴로부터 증상이 있는 커다란 종양 의 형태로 나타난다. 최근 저자들은 단일성의 유상피 혈관내피종과 혈관외피종 각각 1례를 치험하였기에 문헌고찰과 함께 보 고하는 바이다. a Tumors of vascular origin are subdivided into two groups: those composed of pericytes (hemangiopericytoma and glomus tumor), and those composed of endothelial cells(hemangioendothelioma). They are uncommon, potentially malignant tumors, and in the lung, the tumors may present as a small asymptomatic nodule or a large symptomatic lesion. Recently we experienced two cases of solitary pulmonary vascular tumors(epithelioid hemangioendothelioma and hemangiopericytoma), and reviewed them with references.

• Korean Journal of Head & Neck Oncology
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• v.29 no.1
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• pp.29-32
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• 2013

카포시형 혈관내피종은 주로 영유아기에 발생하는 혈관내피세포에서 유래하는 혈관종양이다. 성인에서도 발생할 수 있으나 발생률은 정확히 알려져 있지는 않다. 뼈 또는 연조직을 침범할 수 있으며 경계성 종양으로 알려져 있다. 모세혈관종 또는 카포시형 육종과 유사하게 혈관이 포함된 침습적이고 경계가 불분명한 결절을 형성하며, 보통 사지의 연조직이나 간, 폐에 발생하는 경우가 많다. 문헌상으로 두경부에 발생한 증례가 몇 편 보고되어 있으나, 그 중 익구개와에 발생한 경우를 보고한 경우는 없었다. 저자들은 5개월된 남아에서 익구개와에 발생한 카포시형 혈관내피종을 인터페론 알파와 수술적 절제로 성공적으로 치료하였기에 이를 문헌고찰과 함께 보고하는 바이다.

• Proceedings of the KTCVS Conference
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• 1993.06a
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• pp.60-60
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• 1993

• The Journal of the Korean bone and joint tumor society
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• v.5 no.1
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• pp.35-43
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• 1999

The authors reviewed and analyzed the pathologically confirmed 230 cases of benign soft tissue tumors which had been treated at Department of Orthopaedic Surgery in Seoul Hospital, Hanyang University College of Medicine from February 1984 to November 1997. The following results were obtained. 1. The most common benign soft tissue tumors was ganglion(26.5%) followed by hemangioma(19.6%), lipoma(17.0%), Baker's cyst(13.0%) and neurilemmoma(7.0%) in decreasing order of incidence. 2. Benign soft tissue tumors were found evenly distributed over all age group. Hemangioma and lymphangioma were usually found to occur before 20 years old. 3. Female was affected about 1.3 times more common. But, Baker's cyst and neurilemmoma occurred most frequently in male. 4. In children, the most common benign soft tissue tumors was hemangioma followed by ganglion, lymphangioma, and lipoma. In adult, ganglion, lipoma, Baker's cyst, hemangioma were common. 5. The lower extremity was the predominant site of occurrence(60.0%). 6. Benign soft tissue tumors were taken by excision. Local recurrences were developed in 22(9.6%) out of 230 cases, especially in hemangioma.

• Journal of Chest Surgery
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• v.37 no.3
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• pp.228-234
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• 2004

Primary cardiac tumors are rare disease and they present nonspecific symptom. They are divided in benign and malignant tumors and require surgical therapy and/or additional therapy. From March 1995 to March 2003, twenty one patients were diagnosed as having primary cardiac tumors. We analysed them retrospectively in terms of various perioperative factors and early and late results. 6 men and 15 women and their average age was 45.44$\pm$18.76. Pathology revealed eighteen benign (fourteen myxoma, two fibroelastoma, one hemangioma and one paraganglioma) disease and three malignant (one angiosarcoma, one mesothelioma and one myxofibrosarcoma) disease. There was one (myxoma) operative mortality and three late death (hemangioma, angiosarcoma and mesothelioma) during additional therapy and follow up. Surgical treatment of primary cardiac tumor is important and sometimes additional therapy is required but the prognosis of malignant cardiac tumor is still very poor.

• Journal of Life Science
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• v.24 no.5
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• pp.588-593
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• 2014

Tumor angiogenesis is important in tumorigenesis and therapeutic interventions in cancer. To know inhibitor and effector of tumor angiogenesis in cancer, the specific gene of tumor and angiogenesis may develop the mechanisms of cancer suppression and therapy. Recently, we described the role of RalA-binding protein 1 (RLIP76) in tumor angiogenesis. Tumor vascular volumes were diminished, and vessels were fewer in number, shorter, and narrower in RLIP76 knockout mice than in wild-type mice. Moreover, angiogenesis in basement membrane matrix plugs was blunted in the knockout mice in the absence of tumor cells, with endothelial cells isolated from the lungs of these animals exhibiting defects in migration, proliferation, and cord formation in vitro. RLIP76 is expressed in most human tissues and is overexpressed in many tumor types. In addition, the protein regulates tumorigenesis and angiogenesis in vivo and in vitro. As the export of chemotherapy agents is a prominent cellular function of RLIP76, it is a major factor in mechanisms of drug resistance. Moreover, RLIP76 acts as a selective effector of the small GTPase, R-Ras, and regulates R-Ras signaling, leading to cell spreading and migration. Furthermore, in skin carcinogenesis, RLIP76 knockout mice are resistant, with tumors that form showing diminished angiogenesis. Thus, RLIP76 is required for efficient endothelial cell function and angiogenesis in solid tumors.

• Journal of Chest Surgery
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• v.37 no.11
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• pp.946-950
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• 2004

Hemangiopericytoma of the lung is a very rare malignant tumor despite it's high vasculities of the lung, because, this tumor arises from the pericytes enveloping capillaries. A pulmonary hemangiopericytoma was diagnosed in a 63-year-old female who had complained of cough, sputum, and intermittent chest pain for about 8 years. She was admitted to our hospital, because of progressive severe dyspnea on exertion and orthopnea for about 3 months. She was taken explothoracotomy and left pneumonectomy including evacuation of lots of blood clots due to ruptured large tumor and ineffective drainage with closed thoracic tube. She was discharged at post-operative 7 days under very good condition. She has been treated with radiotherapy&chemotherapy since then.