Yasuhiro Tsutani

Learn More
OBJECTIVES The present multicenter study compared the usefulness of the solid tumor size with that of the whole tumor size on preoperative high-resolution computed tomography for predicting pathologic high-grade malignancy (positive lymphatic, vascular, or pleural invasion) and the prognosis of clinical stage IA lung adenocarcinoma. METHODS We performed(More)
OBJECTIVE Our objective was to compare the oncologic outcomes of lobectomy and segmentectomy for clinical stage IA lung adenocarcinoma. METHODS We examined 481 of 618 consecutive patients with clinical stage IA lung adenocarcinoma who underwent lobectomy or segmentectomy after preoperative high-resolution computed tomography and F-18-fluorodeoxyglucose(More)
Rapid regrowth or recurrent growth of occult cancer cells are often observed after esophagectomy or postoperative complications. In order to clarify the mechanism of such oncological circumstances, we focused on neutrophil elastase (NE), which degrades a broad spectrum of extracellular matrix and cell surface proteins. In the present study, we demonstrated(More)
OBJECTIVES The purpose of this study was to perform histopathologic and immunohistochemical analyses of gastric transcription factor SOX2 and gastric mucin MUC5AC to better understand the stepwise progression of pancreatic carcinoma. METHODS Twenty-eight representative sections from 14 surgically resected pancreatic carcinomas were assessed(More)
BACKGROUND The purpose of this multicenter study was to characterize ground glass opacity (GGO)-dominant clinical stage IA lung adenocarcinomas and evaluate prognosis of these tumors after sublobar resection, such as segmentectomy and wedge resection. METHODS We evaluated 610 consecutive patients with clinical stage IA lung adenocarcinoma who underwent(More)
We analysed the results of radical segmentectomy achieved through a hybrid video-assisted thoracic surgery (VATS) approach that used both direct vision and television monitor visualization at a median follow-up of over 5 years. Between April 2004 and October 2010, 102 consecutive patients able to tolerate lobectomy to treat clinical T1N0M0 non-small cell(More)
BACKGROUND The aim of this study was to evaluate the significance of (18)F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) for speculating the malignant level and prognostic value of operable breast cancers. METHODS Of 578 consecutive patients with primary invasive breast cancer who underwent curative surgery between 2005(More)
OBJECTIVES This study aimed to compare prognosis after segmentectomy and after lobectomy for radiologically determined solid-dominant clinical stage IA lung adenocarcinoma. METHODS From a multicentre database of 610 consecutive patients with clinical stage IA lung adenocarcinoma who underwent complete resection after preoperative high-resolution computed(More)
OBJECTIVE Patients with pathologic node-negative early lung cancer may be optimal candidates for sublobar resection. We aimed to identify predictors of pathologic lymph node involvement in clinical stage IA lung adenocarcinoma. METHODS The data from a multicenter database of 502 patients with completely resected clinical stage IA lung adenocarcinoma were(More)
BACKGROUND To better describe clinical T descriptors using solid tumor size (the maximum dimension of the solid component of the tumor) on high-resolution computed tomography (HRCT) and maximum standardized uptake value (SUVmax) on F-18-fluorodeoxyglucose positron emission tomography/CT (FDG-PET/CT). PATIENTS AND METHODS We examined 610 consecutive(More)