Publications by authors named "Hirotoshi Kubokura"

Background: Calcifying fibrous tumor (CFT) arising from the pleura is a relatively rare benign lesion in young and middle-aged adults. We report a 31-year-old woman with pleural CFT who underwent successful complete thoracoscopic enucleation.

Case Presentation: An asymptomatic woman presented with a mass in the right lower lung field that was incidentally detected on a chest X-ray during a routine medical checkup.

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Adenoid cystic carcinoma (ACC) is a rare type of malignant tracheal tumor originating from the secretory glands. Complete surgical resection is the current standard of care for tracheal ACC. However, there have been few case reports of chemoradiotherapy for unresectable tracheal ACC.

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Introduction: Hydrothorax due to pleuroperitoneal communication (PPC) can occur in patients undergoing continuous ambulatory peritoneal dialysis (CAPD). We report our experiences of the safety and efficacy of the treatment of four patients with a novel video-assisted thoracoscopy method.

Methods: Single-port video-assisted thoracoscopic surgery (VATS) was performed with a mini-thoracotomy of 5 cm in length.

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Objectives: Division of incompletely lobulated fissures is often performed during surgical resection of non-small-cell lung cancer (NSCLC); however, the effect of lobulation on tumour recurrence is unclear. This study aimed to assess the prognostic effect of lobulation in patients with NSCLC according to their preoperative and operative findings.

Methods: A retrospective study of patients with p-stage I NSCLC who underwent lobectomy was conducted between April 2008 and April 2016.

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Background: In the elderly patients, optimal surgical treatment can be difficult to achieve, because of comorbidity. Therefore, we aimed to clarify the preferred surgical management in this patient group.

Methods: A retrospective study was conducted between April 2008 and March 2015 that included patients with non-small cell lung cancer (NSCLC) aged ≥ 75 years.

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Background: Video-assisted thoracoscopic surgery (VATS) lobectomy is increasingly used for pulmonary sequestration; however, there are few descriptions of safe handling of the aberrant artery. Here we clarify the safe handling of an aberrant artery using a clinical review and an experimental model.

Methods: We retrospectively reviewed the records of patients who underwent lobectomy for pulmonary sequestration with aberrant arteries at the Nippon Medical School between January 2008 and December 2010.

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Intrathoracic neurofibromas originating from the vagus nerve in patients without von Recklinghausen disease is rare and poses a problem in etiological diagnosis. Surgical resection is usually necessary for precise diagnosis of such tumors. We report the first case of a neurofibroma originating from the right pulmonary branch of the vagus nerve in a 34-year-old male without von Recklinghausen disease.

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The form and timing of the local recurrence of lung cancer can be unpredictable and unexpected. Pseudomesotheliomatous adenocarcinoma is a rare tumor that mimics malignant pleural mesothelioma both clinically and pathologically. Distinguishing pseudomesotheliomatous adenocarcinoma from malignant pleural mesothelioma on the basis of clinical findings can be difficult; therefore, a biopsy is usually required for diagnosis.

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A 58-year-old man was admitted to our hospital because of dyspnea, dysphagia, and back pain. A chest roentgenogram showed bilateral pleural effusion. Bloody fluid was aspirated via thoracocentesis, but no malignancy was detected on cytological examination.

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Purpose: We report our experience with completion pneumonectomy (CP).

Methods: We report on operative procedure and morbidity, mortality, and survival rates.

Results: CP was performed for malignancy in 12 patients and postoperative complications after the first operation in 4 patients.

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Purpose: We report surgical results of metachronous nonsmall cell lung cancer (NSCLC).

Methods: We report mortality and analyze prognostic factors for overall survival in patients with metachronous NSCLC at Nippon Medical School from July 1982 to July 2008.

Results: Thirty-three out of 1726 patients (1.

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We report a glomus tumor of the bronchus that showed invasion of the neural area and extrabronchial extension without significant histological malignancy. The patient was a male in his late 30s with the chief complaint being hemosputum. CT revealed a nodal shadow 15 mm in diameter in the right bronchus intermedius.

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We herein describe a patient we encountered in whom mediastinal lymph node metastasis of lung cancer with an unknown primary lesion was complicated by both an endocrine abnormality and acanthosis nigricans. A 66-year-old male visited a local hospital and was diagnosed as having acanthosis nigricans. The patient was referred to our hospital for further examination.

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A 16-year-old male patient was admitted to the hospital for a medical workup to examine an anterior mediastinal tumor in April 2000. A tumor excision and a right lower lung lobe nodule resection were performed in June 2000. The tumor tissue showed a cobblestone-like proliferation of atypical cells containing a discrete nucleolus that were aligned in an epithelial fashion against mainly lymphocytic inflammatory cells in the background; also shown were undifferentiated tumor cells with epithelioid characteristics.

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Purpose: We report surgical results of lung cancer associated with postobstructive pneumonia.

Materials And Methods: We report on morbidity and mortality, and we analyze the risk factors for them and the prognostic factors for overall survival of patients without mortality.

Results: Morbidity developed in 13 of the 38 patients (34.

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Pulmonary carcinosarcoma is a rarely encountered tumor. We treated a patient who had an intrabronchial polypoid lesion that required a diagnostic differentiation from epithelial-mesenchymal mixed neoplasms inclusive of pleomorphic adenoma, and that was diagnosed by immunohistochemical staining to be a true carcinosarcoma. A 69-year-old man underwent left pneumonectomy in November 2000 with a diagnosis of atelectasis resulting from a tumor obstructing the left lower lobar bronchus, and also a lung abscess.

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Extramedullary hematopoiesis (EMH) is a rare disease associated with hematologic disorders. This report describes a case of posterior mediastinal mass found by occurring spontaneous pneumothorax in a 48-year-old male. The intrathoracic mass resected using video-assisted thoracic surgery (VATS) was diagnosed thoracic EMH (TEMH).

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Background: Bronchopleural fistula is a potentially fatal complication of pulmonary resections, especially pneumonectomy.

Methods: Univariate and multivariate analyses of the development of bronchopleural fistula were performed in 12 patients with bronchopleural fistula and 102 patients without bronchopleural fistula who had undergone pneumonectomy from January 1983 through December 2005.

Results: Bronchopleural fistula developed after pneumonectomy in 12 patients (8.

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We encountered a male patient aged 64 with pulmonary mucinous carcinoma in whom a diagnosis of pulmonary metastasis from early rectal cancer with submucosal invasion was made based on an immunohistochemical examination. A rectal cancer was detected together with a mass in the lung. The mass in the lung was consistent with mucinous adenocarcinoma, whereas the invasion of rectal cancer was confined to the submucosa; thus, distant metastases appeared unlikely.

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Background: There are gender differences in multiple primary malignancies associated with lung cancer (MPMLC) in terms of clinical characteristics. However, the importance of these differences in the management of patients has not been clarified.

Objective: Differences in characteristics affected by gender were investigated in MPMLC to identify factors important for the proper management of the patients.

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Primary lymphoepithelioma-like carcinoma (LELC) of the lung is a very rare disease. There is very little long term follow-up data about this disease. A 60-year-old woman was found to have abnormalities according to a routine chest X-ray examination.

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We report of the experience of video-assisted thoracic surgery (VATS) for a Ewing's sarcoma at the posterior mediastinum in a 3 year old girl. The patient developed common cold like symptoms and developed rapid lower limb paraplegia. A chest computed tomography (CT) showed a solid mass adjacent to the vertebrae.

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Purpose: We analyzed the risk factors predisposing patients to develop postoperative respiratory complications (PRCs) in VATS lobectomy and segmentectomy for lung cancer, retrospectively.

Methods: Both univariate and multivariate analyses of PRCs were performed in seventy-five patients who had undergone VATS lobectomy and segmentectomy for lung cancer from November 1994 to December 2000.

Results: Univariate analysis of the development of PRCs revealed that the significant risk factors were age, ppo%VC, ppo%FEV, ppoFEV, poor pulmonary function, and duration of surgery.

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Introduction: Esophageal cancer remains a highly lethal malignancy, with therapeutic options of limited efficacy in the majority of patients. Understanding the molecular events involved in the pathogenesis of esophageal cancer offers insight into potential targets for treatment. Beta catenin and Wnt signaling abnormalities are involved in the development of both adenocarcinoma and squamous carcinoma of the esophagus.

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Objectives: We evaluated the pre-, intra- and postoperative outcome of video-assisted thoracic surgery lobectomy in elderly lung cancer patients to determine what factors may be disadvantageous.

Methods: From June 1982 to May 2000, 707 patients underwent pulmonary resection for primary lung cancer. Of these, 87 patients with t1-2 peripheral lung cancer underwent lobectomy and postoperative pulmonary function tests and postoperative conditions at an average of 2.

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