Yukio Mikami

Learn More
BACKGROUND/AIMS Patients with intraductal papillary-mucinous neoplasm (IPMN) of the pancreas are likely to have a better prognosis than those with conventional pancreatic ductal adenocarcinoma. Recently there have been some reports on extrapancreatic malignant neoplasms (EPM) occurring in patients with IPMN. The purpose of this study was to discover the(More)
OBJECTIVES Intraductal papillary-mucinous neoplasm (IPMN) of the pancreas encompasses a spectrum of neoplasms with both morphological and immunohistochemical variations of mucin glycoproteins. Recently, a consensus nomenclature and criteria were histologically defined for classifying these variants of IPMNs into gastric, intestinal, pancreatobiliary, and(More)
OBJECTIVES The angiographic appearance of acute necrotizing pancreatitis (ANP) demonstrates ischemic change with vasospasm in and around the pancreas. We investigated the role of vasospasm in pancreatic ischemia and necrosis in the early phase of human ANP. METHODS The relationship between the angiographic abnormalities and the perfusion status of the(More)
Other studies have shown that both morphologicaland functional adaptation occur in the ileal mucosaafter total colectomy and may be mediated by humoralfactors. To elucidate the participation of peptide YY (PYY) in intestinal adaptation after totalproctocolectomy with ileal pouch-anal anastomosis(IPAA), changes in the number of PYY-containing cellsand in(More)
BACKGROUND The purpose of this study was to clarify the still poorly understood dynamics of peritoneal inflammatory cells (PICs) in acute pancreatitis. METHODS Acute pancreatitis of 3 different degrees of severity was induced in male Wistar rats. Peritoneal lavage was performed at 1, 6, 12, and 24 hours after the induction, and the fluids collected were(More)
Whereas mucinous cystadenomas of the pancreas are considered premalignant, serous cystadenomas are believed to remain benign. We present a case of an 80-year-old woman with a primary tumor of the pancreas that was histologically classified as serous cystadenocarcinoma. Because preoperatively available criteria that determine malignancy in serous lesions are(More)
STUDY DESIGN A prospective clinical study. OBJECTIVE To elucidate the histomorphological features and clinical significance of the epidural membrane (EM) in the cervical spine based on operative and histological findings. SUMMARY OF BACKGROUND DATA The anatomical features of the EM have been mostly discussed on the basis of cadaver studies in the whole(More)
Resection for a mass in the proximal thigh was performed on a 57-year-old woman, the diagnosis of which was extraskeletal osteosarcoma. In pathological findings, tumor cells gradually decreased from the central area of the mass composed of spindle cell sarcoma and were replaced by fibrocollagenous tissue with no sarcoma cells. CD8(+), T-cell-restricted(More)
Quadriceps muscle weakness is common following anterior cruciate ligament (ACL) reconstruction. Tensiomyography is a recent method to assess muscle strength, and one that also enables evaluation of individual muscles. The purpose of this study was to evaluate motor unit recruitment and investigate the effects on mechanical and contractile characteristics of(More)
The aim of the present study was to compare spatial electromyographic potential distribution during force production between healthy young female and male using multi-channel surface electromyography (multi-SEMG). Thirty healthy subjects (15 females) performed sustained isometric knee extension at 10% maximal voluntary contraction (MVC) task for 120 s.(More)