• Journal of Chest Surgery
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• v.37 no.12
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• pp.1036-1039
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• 2004

Most tumors of the tracheobronchial tree are malignant, and benign tumors are less than 10%. Especially, the incidence of primary neurogenic tumors of the lung has been estimated to be less than 2 percent of primary lung cancer, and majority of these tumors are originated from Schwann cells. These tumors can be presented either as a solitary benign neoplasm or as a malignant form, which is rare. We present two cases of bronchial Schwan noma managed by means of lobectomy.

• Journal of Chest Surgery
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• v.37 no.11
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• pp.955-958
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• 2004

Mucoepidermoid carcinoma is an uncommon lesion that accounts for approximately 1% of primary malignant bronchial gland tumors and less than 0.2% of all lung neoplasm. This tumor presents with symptoms of bronchial irritation or obstruction. Distant metastasis is uncommon, therefore complete surgical resection is the treatment of choice. The prognosis of tumor correlates with on the histologic grade of tumor. We experienced mucoepidermoid carcinoma in a 15 year-old girl with symptoms of cough and blood tinged sputum. The patient underwent successful removal of tumor by bilobectomy via explorothoracotomy after chest CT and bronchoscopic biopsy.

• Journal of Chest Surgery
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• v.35 no.10
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• pp.760-763
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• 2002

Mucoepidermoid cancer of the bronchus in childhood is extremely rare. These tumors generally produce symptoms of airway obstruction, often misdiagnosed as unresolved tuberculosis. Distant metastasis is an uncommon finding of this malignancy, therefore complete surgical resection is treatment of choice. The prognosis of these tumors correlates with the histologic grade of the tumor. We report our clinical experience of mucoepideromoid cancer in a 10-year-old child who visited our hospital with symptoms of recurrent cough and fever. The patients underwent successful removal of tumor by bilobectomy via thoracotomy after bronchoscopic biopsy.

• Journal of Chest Surgery
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• v.32 no.12
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• pp.1144-1147
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• 1999

Primary endobronchial leiomyosarcoma is a very uncommon tumor and its diagnosis by spontaneous expectoration of tumor fragment has never been reported in the literature. We report a patient with primary endobronchial leiomyosarcoma that was diagnosed by spontaneous expectoration of partial tumor tissue. The expectorated tissue was found to be pathologically consistent with leiomyosarcoma. Right lower lobectomy and all lymph node dissections were performed during the operation. Pathologic examination showed that the tumor was histologically identical to the patient's previous expectorated tissue and was confined to the bronchus and did not invade the adjacent pulmonary parenchyma and lymph nodes.

• Journal of Chest Surgery
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• v.32 no.1
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• pp.88-91
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• 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
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• v.31 no.7
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• pp.725-729
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• 1998

Endobronchial leiomyoma is extremely rare and accounts for less than 2% of benign tumors of the lower respiratory tract. Leiomyomas are predominantly found in the young and the middle aged : of the average age being 35 years for bronchial and lung parenchymal lesions and 40.6 years for tracheal lesions. The symptom depends on the location of the tumor, its size, and changes in the lung distal to the lesion. A 37-year-old woman was admitted to our hospital complaining of coughing. Bronchoscopy revealed complete obstruction of the right main bonchus at the carina by an oval-shaped, nonulcerative, smooth, and pinkish-tan tumor with a broad margin and extended to the left main bronchus. A biopsy was performed and showed a benign spindle cell tumor. A right pneumonectomy was performed because of chronic infection, and the lung could not expanded during aeration. The histological diagnosis of the resected specimen was leiomyoma. The postoperative course was uneventful.

• Tuberculosis and Respiratory Diseases
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• v.48 no.1
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• pp.96-102
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• 2000

Granular Cell Tumors(GCT) were originally described as myoblastic myomas. This tumor is believed to originate from Schwann cells based on subsequent scientific investigations. Although it usually appears in the head and neck, it can also appear in other organs as well. Endobronchial granular cell tumors are rather rare and should be differentiated from other common endobronchial diseases such as bronchogenic carcinoma and endobronchial tuberculosis, especially. A case of a patient with an extremely rare condition of endobronchial granular cell tumor concurrent with malignant mediastinal tumor is reported.

• Journal of Chest Surgery
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• v.39 no.3 s.260
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• pp.240-243
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• 2006

Pulmonary hamartoma is a common benign tumor of the lung, but endobronchial hamartoma is a rare tumor. Although bronchoscopic rcemoval or removal by bronchotomy or sleeve resection with preservation of the lung may be possible, when irreversible lung damage has occurred because of chronic obstruction and pneumonitis, pulmonary resection may be indicated. We herein report a case of endobronchial hamartoma which was treated by left upper lobectomy. A 42-year-old female with 3-week history of cough and left chest pain visited our hospital. Bronchoscopy showed total occlusion of the orifice of the left upper lobe bronchus by a lobulated endobronchial tumor and bronchoscopic biopsy was failed due to bleeding. A left upper lobectomy was performed because of severe consolidation of the left upper lobe by chronic obstruction. The patient was discharged on postoperative 14th day.

• Tuberculosis and Respiratory Diseases
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• v.53 no.3
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• pp.285-293
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• 2002

Background : The lung is the most common site for a metastasis of extrapulmonary malignant tumors. however, reports on an endobronchial metastasis are rare. An endobronchial metastasis is defined as a documented extrapulmonary neoplasms metastatic to the segmental or more proximal central bronchus within a bronchoscopically visible range. The purpose of this study was to define the clinical characteristics of an endobronchial metastasis of extrapulmonary malignancies. Materials and Methods : The clinical features and treatment outcomes of 27 endobronchial metastatic cancer cases were reviewed from June, 1991 to May, 2001 in the Severance Hospital. Results : The patients' age ranged from 18 to 75. There were 17 men and 10 women. The primary tumors included the colorectum in 7, the uterine cervix in 4, the stomach and the breast in 3 patients each, and an osteosarcoma in 2 patients. The main complaint of most patients was coughing and a chest X-ray revealed a hilar mass, a parenchymal, and an atelectasis. The mean recurrence interval time was 45.5 months. The median and mean survival times were 10 and 12.3 months, respectively. Conclusion : An endobronchial metastasis is an ominous finding, and is associated with advanced-stage diseases. It requires differential diagnosis with a primary bronchogenic carcinoma. If atypical clinical features are present or an atypical cell type is discovered by a biopsy of the lesion in the lung mass, the appropriate diagnostic studies should be undertaken.

• Journal of Chest Surgery
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• v.39 no.9 s.266
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• pp.718-721
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• 2006

We describe the case of primary pulmonary paraganglioma in a 37-year-old woman who presented recurrent, severe cough. Computed tomography revealed a lobulated inhomogeneous enhanced mass with endobronchial protruding lesion suspected to be lung neoplasm, located in the upper lobe of the left lung. Bronchoscopic biopsy showed chronic inflammation with granulation tissue which was not in accord with the radiologic findings. Subsequently, a left lower sleeve lobectomy was peformed. Histological analysis of the resected tumor proved to be compatible with pulmonary paraganglioma. Primary pulmonary paragangliomas are very uncommon tumors. So we report this case with literature review.