Apostolos V. Pappas

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We report on five patients (three males and two females), with a median age of 66.2 years (range, 58-73 years) who were admitted in our department from April 1998 until January 2004 with the diagnosis of rectal gastrointestinal stromal tumor (GIST). Their main symptoms were rectal bleeding, constipation and abdominal discomfort. Two patients were treated by(More)
BACKGROUND On June 11th, 2009 the World Health Organization (WHO) declared the first influenza pandemic of the 21st century. Data regarding the clinical characteristics and course of this viral infectious disease are still being assessed. The aim of this study was to investigate and compare the possible differences in clinical course and outcome between(More)
Midstream samples of urine from 185 acutely dysuric women and 89 symptom-free controls were screened according to the modified criteria of Kass by both conventional and microaerophilic culture. Among the 185 symptomatic women, coliform bacilli were isolated from 125 (67.5%) and in 45 (36%) of the latter the concentration of these organisms in the urine was(More)
INTRODUCTION The immunocytochemical expression of topoisomerase II alpha (TOP2A), enhancer of zeste homologue 2 (EZH2) and paxillin has recently gained increasing attention. Although previous studies have commented on the clinical usefulness of these markers, their role remains controversial. AIM The purpose of the study was to investigate the expression(More)
The aim of this study was to investigate the impact of polymicrobial bloodstream infections (pBSIs) on the outcome of sepsis in an area where antimicrobial resistance is of concern. This was a retrospective analysis of data collected prospectively from patients developing BSI outside of an intensive care unit (non-ICU patients) or after ICU admission.(More)
BACKGROUND Gastrin has been shown to exert carcinogenic effect to the epithelium of the colon. This study examines whether hypergastrinemia and H. pylori infection -especially infection by the CagA+ strain- are statistically associated with colorectal cancer and examine possible correlations with the colorectal cancer stage and lymph node metastasis. (More)
PURPOSE To evaluate the HER-2/neu expression and its relationship with clinicopathological parameters and prognosis in colorectal cancer patients. METHODS A total of 51 colorectal cancer patients who underwent resection with curative intent from January 2005 to March 2006 were included in this study. Patients were regularly followed up and survival data(More)
INTRODUCTION During the past several years, the Ki-67 antigen has gathered great interest in its role as a prognostic marker. Nevertheless, despite the large number of published papers, the role of Ki-67 in clinical practice remains controversial. AIM To evaluate the association between Ki-67 immunoreactivity and other clinicohistopathological parameters.(More)
Differentiated thyroid cancer is rarely associated with paraneoplastic events. Polymyositis, an autoimmune inflammatory myopathy, can be manifested as a paraneoplastic syndrome (PS). We report a case of a young woman who developed progressive proximal muscle weakness one and a half year after a total thyroidectomy for papillary thyroid cancer. Clinical(More)
INTRODUCTION Emphysematous pyelonephritis is a gas-producing necrotizing bacterial infection that involves the renal parenchyma and perirenal tissue. CASE PRESENTATION We report on a case of a 55 year old Caucasian male with no prior medical history presented with left flank pain and malaise. He was diagnosed with emphysematous pyelonephritis, and was(More)