• Journal of Chest Surgery
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• v.16 no.4
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• pp.571-583
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• 1983

Thymic tumor is the most common neoplasm originating in the anterior mediastinum. Histologically, thymic tumors and tumorlike conditions have been classified into thymic cyst, thymolipoma, true thymic hyperplasia, thymoma and carcinoid tumor of the thymus gland. We have experienced several tumors and a few tumorlike conditions of the thymus gland in 10 patients: thymoma 6, thymic hyperplasia 2, carcinoid tumor 1 and thymic cyst 1. The age distributions were ranging from 30 to 60 years except for one 3 year old child [malignant thymoma, lymphocytic type], and male to female ratio was 1:1.5. In 6 cases, thymic lesions were removed through lateral thoracic incision [right 2, left 4] because the mediastinal masses were growing far into the pleural space, meanwhile, medially located lesions [4 cases] through median sternotomy incision. Among these 10 patients, 3 were malignant thymomas, in which 2 were died of recurrence after tumor resection. Myasthenia gravis was all noted in 3 females [thymoma 2, thymic follicular hyperplasia 1], in which only two revealed remission in symptoms following thymectomy. The authors would like to recommend early radical thymectomy through median sternotomy incision whenever patients demonstrate suspicious thymic tumor lesions on the chest roentgenogram or generalized myasthenic symptoms.

• Tuberculosis and Respiratory Diseases
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• v.48 no.3
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• pp.388-393
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• 2000

Localized fibrous tumor of the pleura is very rare. Most of them are benign, but some are malignant. This clause does not relate with the rest of the sentence. The single best predictor of clinical benignity is whether the tumor can be totally resected. We experienced a case of localized fibrous tumor of the pleura in a 57 year old man with right chest pain and cough. He was informed of a $8{\times}5cm$ mass in his right lower lung field, which was benign 3 years ago. Preoperative chest x-ray showed an increased hazy density at right lower lung field, and CT scan showed a $12{\times}8cm$ huge mass, which was located in right lower thorax. Left thoracotomy was done to excise a $12{\times}8{\times}5cm$(1200gm) sized large mass delete. The patient was discharged without any complications postoperatively.

• Journal of Chest Surgery
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• v.31 no.9
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• pp.911-914
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• 1998

We report our experience with 2 cases of perforation of intrathoracic stomach after Ivor Lewis operation for esophageal cancer. There was no problem in the anastomotic site, but the drainage from pleural cavity increased after oral intake. The stomach perforation was proved by rethoracotomy. The perforation site was repaired by sutures with pedicled intercostal muscle.

• Journal of Chest Surgery
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• v.38 no.6 s.251
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• pp.457-459
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• 2005

Spindle cell lipoma is a relatively rare adipocytic neoplasm that is easily mistaken for a liposarcoma, and is histologically characterized by a mixture of uniform spindle cells and mature fat cells. It occurs predominantly in male patients aged $45\~65$ years, and in most cases it arises in the subcutaneous tissue of the neck or shoulder. We report a case of a 45-year-old woman with spindle cell lipoma arising from the left pleural cavity.

• Journal of Clinical Otolaryngology Head and Neck Surgery
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• v.29 no.2
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• pp.254-258
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• 2018

The solitary fibrous tumor (SFT) is a mesenchymal neoplasm that is described as spindle-shaped tumor cells on a collagenous background originating from pleural tissues. Recently, extrapleural SFT has been reported in nearly all sites, including the sublingual gland, parotid gland, nasal cavity and paranasal sinuses. Complete surgical excision is primary treatment for SFT, but diagnosing SFT is not often made until immunohistochemical evaluation after surgical resection. We report that the patient, 45-year-old male, was considered as a case of inflammation polyp arising from left nasal cavity with initial biopsy, however, it has turned out to be SFT after surgical treatment.

• Journal of the Korean Society of Radiology
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• v.85 no.3
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• pp.566-578
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• 2024

Purpose This study investigated whether the respiratory phase during pleural puncture in CT-guided percutaneous transthoracic needle biopsy (PTNB) affects complications. Materials and Methods We conducted a retrospective review of 477 lung biopsy CT scans performed during free breathing. The respiratory phases during pleural puncture were determined based on the table position of the targeted nodule using CT scans obtained during free breathing. We compared the rates of complications among the inspiratory, mid-, and expiratory respiratory phases. Logistic regression analysis was performed to control confounding factors associated with pneumothorax. Results Among the 477 procedures, pleural puncture was performed during the expiratory phase in 227 (47.6%), during the mid-phase in 108 (22.6%), and during the inspiratory phase in 142 (29.8%). The incidence of pneumothorax was significantly lower in the expiratory puncture group (40/227, 17.6%; p = 0.035) and significantly higher in the mid-phase puncture group (31/108, 28.7%; p = 0.048). After controlling for confounding factors, expiratory-phase puncture was found to be an independent protective factor against pneumothorax (odds ratio = 0.571; 95% confidence interval = 0.360-0.906; p = 0.017). Conclusion Our findings suggest that pleural puncture during the expiratory phase may reduce the risk of pneumothorax during image guided PTNB.

• Journal of Chest Surgery
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• v.31 no.10
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• pp.982-987
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• 1998

Background: Surgical resection is the standad therapy for the stage I lung cancer. We analysed the risk facturs of stage I lung cancer patent and tryed to establish more effective and aggressive treatment modality. Materials and methods: A detailed analysis was undertaken to evaluate the surgical results and to define the risk factors associated with the recurrence and the survival time in 146 consecutive patients with stage I lung cancer who were diagnosed, and resected at Yonsei Medical Center from January 1990 to December 1996. Results: There were 115 males and 31 females. Their ages ranged from 27 to 79 years(mean age:58.9$\pm$9.3 years). The histologic types were squamous carcinoma in 72 cases(49.3%) and adenocarcinoma in 45 cases(30.8%). A pulmonary resection and mediastinal lymph node dissection were done in all cases. A lobectomy was performed in 96 cases(65.7%) and a pneumonectomy in 48 cases(32.9%). There were 5 operative mortalities(3.4%) and complications occured in 24 cases(16.5%). The overall 5-year survival was 64.1%, and survival time did not depend on the type of operation or histologic type. Significant predictors of decreased survival were visceral pleural invasion(p=0.0079), T2 lesion(p=0.0462), and tumor size($\geq$5 cm) in adenocarcinoma(p=0.0472). The overall incidence of recurrence was 33.3%(47 cases; local or regional 6.4%, distant 26.9%). Almost all recurrences(44cases) occurred in T2 lesions. The distant organs that failed were the contralateral lung in 13 patients, the brain in 12, the bone in 10, and other organs in 3. Conclusions: even in stage I lung cancer, we suggest that postoperative adjuvant therapy is recommended in patients with poor prognostic factors such as visceral pleural invasion, T2 lesions, and a tumor size($\geq$5 cm) in the adenocarcinoma.

• Korean Journal of Head & Neck Oncology
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• v.33 no.2
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• pp.59-62
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• 2017

Solitary fibrous tumor (SFT) is an uncommon spindle cell neoplasm that is usually presented as a pleural origin localized tumor. There are few cases, found in thyroid. Twenty six cases found in thyroid have been reported since 1993, and two of these were malignant. We report another malignant case in this study; a 55 years old man visited out-patient clinic due to palpable mass of anterior neck, and pathologically diagnosed as malignant SFT of thyroid after surgical resection. In this study, we focus on the clinical features of this uncommon disease along with other literature reviews.

• Investigative Magnetic Resonance Imaging
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• v.15 no.1
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• pp.72-76
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• 2011

Solitary fibrous tumor (SFT) is a rare neoplasm, which is usually presented as a pleural based mass, but can also occur in unusual locations based on its mesenchymal origin. However, the radiologic features of SFT occurred in the ischiorectal fossa have been rarely reported. In this case, we describe the MRI findings in a case of a SFT involving the ischiorectal fossa of a 36-year-old man. The tumor appeared as homogeneous iso-signal intensity relative to the adjacent muscle on T1 weighted images, a mixed high signal intensity on the T2 weighted images, and heterogeneous enhancement following the administration of the contrast material.

• Journal of Chest Surgery
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• v.29 no.4
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• pp.458-460
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• 1996

Percutaneous transthoracic fine needle biopsy is a popular technique in the diagnosis ot'pulmonary and pleural diseases and its complication rate is very low. One of the rarest but potential complications is that of implantation of malignant cells along the needle tract and subsequent development of a chest wall mass . We experienced a case of chest wall implantation of lung cancer after percutaneous transthoracic fine needle biopsy. The patient was a 59 year old female who had undergone right upper lobectomy for squamous cell carcinoma of the lung (T,N,Mo). 6 months after operation, a loculated mass was palpated at the right posterior .chest wall where the percutaneous transthoracic fine needle biopsy had been performed before operation. We carried out wide excision of this mass and confirmed squamous cell carcinoma histopathologically.