Background: The duration of surveillance after curative resection of colorectal cancer (CRC) is generally 5 years. The overall incidence of recurrence more than 5 years after surgery for CRC in Japan has been reported to be 0.6%.
View Article and Find Full Text PDFSerum Krebs von den Lungen-6 (KL-6) is clinically used for the diagnosis of interstitial pneumonia (IP) as well as the evaluation of its disease activity. A female patient was diagnosed with idiopathic IP when she was 62 years old. Four years later, serum levels of KL-6 had been elevated gradually from 2400-3821 U/ml, and she was found to have gallbladder cancer detected by contrast-enhanced computed tomography (CT) and F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/CT.
View Article and Find Full Text PDFA 77-year-old woman, who underwent surgery for malignant melanoma of the nasal cavity 15 months prior and radiation and interferon-β therapy for local recurrence, presented with epigastric discomfort. PET-CT examination showed multiple intussusceptions due to small intestinal tumors. Four intussusceptions were detected during laparotomy, and she underwent partial resection of the small intestine.
View Article and Find Full Text PDFA 75-year-old man with rectal cancer had consumed an average of6 6 g of alcohol per day for 47 years. However, his liver function was within normal limits and his Child-Pugh classification was A before initiation of therapy. He underwent neoadjuvant chemoradiation and a low anterior resection.
View Article and Find Full Text PDFPurpose: Pancreaticoduodenectomy (PD) following gastrectomy (TG) should be considered challenging even currently although its procedure and clinical value have been being standardized. Short- and long-term outcomes as well as standard reconstruction method following these procedures remain unclear. In order to clarify these issues, we reviewed worldwide English literature and 4 of our own cases of PD for patients with previous TG.
View Article and Find Full Text PDFAutoimmune pancreatitis (AIP) is a unique form of pancreatitis, histopathologically characterized by dense lymphoplasmacytic infiltration and fibrosis of the pancreas with obliterative phlebitis. AIP is associated with a good response to steroid therapy. Differentiation between AIP and pancreatic cancer to determine a preoperative diagnosis is often challenging, despite the use of various diagnostic modalities, including computed tomography (CT), magnetic resonance imaging and endoscopic retrograde cholangiopancreatography.
View Article and Find Full Text PDFBackground/aim: Pancreatic-type acinar cell carcinoma (ACC) in the stomach is extraordinarily rare. We pathologically examined two cases with multiple primary carcinomas, including gastric tumors.
Patients And Methods: Gastric cancer specimens were examined by immunostaining and electron microscopy.
The patient was a 67-year-old woman with achalasia and squamous cell carcinoma(SCC)of the esophagus. She presented with a difficulty in swallowing. The cancer was on the surface of the esophagus.
View Article and Find Full Text PDFThe current study presents a case of sarcoidosis manifesting as hepatic and splenic nodules, which was difficult to differentiate from ovarian cancer metastases. A 24-year-old female, who was previously diagnosed with right ovarian cancer and underwent surgery at the age of 21, was found to have two nodules in the spleen revealed by contrast-enhanced computed tomography (CT). F-fluorodeoxyglucose positron emission tomography/CT revealed two abnormal high uptake lesions in the spleen and one abnormal high uptake lesion in the liver.
View Article and Find Full Text PDFChemotherapy with S-1 and oxaliplatin is a new treatment for metastatic colorectal cancer. We present the first case of S-1, oxaliplatin, and bevacizumab therapy in our hospital. The patient was a 69-year-old woman with ascending colon cancer and multiple lung and liver metastases.
View Article and Find Full Text PDFMitochondrial Myopathy, Encephalopathy, Lactic Acidosis, and Stroke-like syndrome (MELAS) is a rare, fetal disease caused by a mutation in mitochondrial DNA that leads to impaired oxidative metabolism in skeletal muscle, the central nervous system, and liver function. This report presents the case of a 50-year-old woman with biliary cystadenocarcinoma complicated by MELAS who underwent a successful left hemihepatectomy. In this case, the diagnostic key for the malignant tumor was an (18)F-fluorodeoxyglucose positron emission tomography study, which was useful even in a patient with MELAS, which causes abnormal glucose metabolism.
View Article and Find Full Text PDFPatients with primary sclerosing cholangitis (PSC) are at an increased risk for biliary tract carcinoma. The preoperative diagnosis of a biliary tract tumor as a malignancy is difficult, even using new modalities such as multidetector computed tomography (MD-CT), magnetic resonance cholangiopancreatography (MRCP), endoscopic retrograde cholangiography (ERC), and (18)F-fluorodeoxyglucose positron emission tomography (FDG-PET). Surgery is considered to be first line of treatment when these examinations suggest the presence of malignancy in the biliary tract, depending on both the curability of the cancer and the impaired liver function due to PSC.
View Article and Find Full Text PDFBackground: Intestinal fibrosis leading to severe bowel dysmobility or obstruction is a troublesome adverse effect of abdominal or pelvic radiation therapy. We have recently reported that all-trans-retinoic acid (ATRA) prevents radiation- or bleomycin-induced lung fibrosis. Here, we examined the impact of ATRA on the mouse model of radiation-induced intestinal fibrosis.
View Article and Find Full Text PDFBackground: Gene therapy is a promising strategy against advanced cancer; however, the safety of viral vectors and the effectiveness of non-viral vectors have not yet been established. Recently, a hydrodynamics-based procedure was reported to be an effective and safe method to deliver and transduce DNA into the liver. Herein, we propose a strategy for liver metastasis by a hydrodynamics-based procedure to deliver naked non-coding plasmid DNA (pDNA) into the liver as an immunocompetent organ.
View Article and Find Full Text PDFBackground: The concepts of vasculogenic mimicry and mosaic vessels have been proposed as novel modes of tumour neovascularisation. However, the presence and significance of these types of neovascularisation remain unclear.
Materials And Methods: ECV304 human bladder carcinoma cells were used to determine how tumour cells take part in tumour neovascularisation.
Objectives: Immature microvessels, which are not covered by pericytes, are irregular and leaky. We hypothesized that tumor cells can penetrate immature microvessels more easily than mature microvessels. In this study, we investigated the maturation of angiogenesis by the immunohistochemical staining of colorectal cancer specimens and determined the correlation between the microvessel count or the maturity of microvessels and clinicopathological variables.
View Article and Find Full Text PDFBackground: The selection of resective therapy for colorectal hepatic metastases remains controversial. The aim of this study is to investigate the prognostic factors for patients with resected liver metastases from colorectal cancer by analyzing not only clinicopathological factors but also recent immunohistological markers.
Methods: Eighty-five patients underwent hepatic resection for metastatic colorectal cancer over the past 20 years.
Although radiation enteritis is a well-recognized sequel of therapeutic irradiation, the standard surgical method is not universally agreed upon. Not only the short-term effect but also the long-term effect after a surgical intervention has been fairly well reported. To reassess the surgical therapy for radiation enteritis, we retrospectively analyzed 48 patients (5 males and 43 females, mean age 58.
View Article and Find Full Text PDFVascular endothelial growth factor (VEGF) plays a central role in tumour angiogenesis. In a mouse intramuscular tumour model using VEGF-transfected HT1080 human fibrosarcoma, we investigated the morphological features and patterns of remodelling in size-matched tumours. Compared with the control tumours (C group), the VEGF-transfected tumours (V group) showed vigorous neovascularization with larger vessels.
View Article and Find Full Text PDFBackground/aims: We analyzed the expressions of hexokinase II (HK II), a key enzyme in glycolysis, and VEGF in hepatocellular carcinoma (HCC) and metastatic liver cancer in relation to tumor vascularity, and the participation of hypoxia-inducible factor-1 (HIF-1) was studied.
Methods: A real-time quantitative reverse transcription-polymerase chain reaction was performed to examine the HK II and VEGF mRNA expression. Expression of HIF-1 alpha and HK II protein, and microvessel density (MVD) were examined immunohistochemically.