Noriyoshi Sawabata

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OBJECTIVES Positron emission tomography with 2-[18F] fluoro-2-deoxy-D-glucose as a tracer and computed tomography (FDG-PET/CT) are utilized for the diagnosis of lymph node (LN) metastasis from lung cancer. In this study, we analyzed the diagnostic ability of FDG-PET for N staging by focusing on the clinical features of false-positive (FP) and false-negative(More)
Small-cell lung cancer (SCLC) is an aggressive neuroendocrine carcinoma that accounts for approximately 10-15% of all lung cancer cases. This histological subtype is a distinct entity with biological and oncological features differing from non-small cell lung cancer (NSCLC). Treatment is mainly performed using systemic chemotherapy, although surgery in(More)
OBJECTIVE We retrospectively evaluated 15 patients with thymic carcinoma treated with various modalities and investigated overall management of this disease. METHODS From 1983 to 2003, we treated 15 patients with thymic carcinoma (12 squamous cell carcinomas, 2 undifferentiated carcinomas and one adenocarcinoma). According to Masaoka's staging system,(More)
STUDY OBJECTIVE We assessed whether transpleural methods for diagnosing peripheral lung cancer, such as needle aspiration or tumor excision, affect relapse and prognosis, because these techniques have potential to spread malignant cells from the tumor. DESIGN A retrospective study. SETTING National referral hospital. PATIENTS We reviewed 239 patients(More)
A tracheo-arterial fistula is a serious and life threatening potential complication of a tracheostomy. Since 1984, we experienced nine fatal cases of tracheo-arterial fistula among 60 Duchenne muscular dystrophy (DMD) patients who underwent a tracheostomy. Representative cases included a patient with lordosis (Case 8), in whom the fistula was located in the(More)
OBJECTIVES Although video-assisted thoracoscopic thymectomy (VATS-Tx) for thymoma has been introduced, its oncological outcome remains unclear. Our institutional experience with early-stage thymoma was retrospectively reviewed to evaluate the oncological feasibility of thoracoscopic thymectomy. METHODS A retrospective review consisting of 74 patients with(More)
OBJECTIVE We performed this study to determine the role and prognostic factors of neoadjuvant therapy followed by surgery for locally advanced non-small cell cancer. METHODS One hundred patients with clinical stage III non-small cell lung cancer (79 IIIA, 21 IIIB; 78 males, 22 females; average age 60.5 years) received neoadjuvant therapy, of whom 84(More)
OBJECTIVES A new pathological classification for pre- and minimally invasive adenocarcinoma has been established, with distinction prior to surgery crucial because of the extremely good prognosis. METHODS Of 412 patients who underwent surgery for lung cancer from 2008 to 2011, 110 classified as c-stage I had each of the following four parameters assessed(More)
The surgical margin is usually investigated during the operation using a pathological method, though cytological methods are also used to identify remaining malignant cells. We reviewed cases of pulmonary resection for a malignant tumor. At our institution, an on-site surgical margin examination using a cytological method is mandated for cases of wedge(More)
BACKGROUND Following a pulmonary resection, some patients suffer from persistent coughing, which may have a relationship with acid regurgitation. Since few physiological studies have been reported regarding this issue, we conducted the present observational study. METHODS Persistent cough after pulmonary resection (CAP) was defined as non-productive(More)