When the available statistical information is imperfect, it is dangerous to follow standard optimisation procedures to construct an optimal portfolio, which usually leads to a strong concentration of the weights on very few assets. We propose a new way, based on gener-alised entropies, to ensure a minimal degree of diversiication.

INTRODUCTION Adrenal incidentalomas are defined as masses picked up on imaging studies that were done for apparently different reasons. With frequent use of imaging modalities, incidental adrenal masses are commonly encountered in clinical practice. Guidelines are currently available for the diagnosis and management of adrenal incidentalomas, but the appropriateness of initial work-up and subse...

In order to determine the prevalence rate of abdominal masses in children referred to the Kerman university hospital number one from 1984 to 1994, the medical records  of 51 of these children were reviewed.  27 of these patients were boys (53℅), and 24 were girls (47℅). The age variance of these patients were between 3 months and 14 years. In this study,  the most common tumor was Wilm,s tumor ...

BACKGROUND Abdominal pain is one of the most common presentations of adnexal pathology in gynecology. Early diagnosis and intervention is essential especially in adolescent girls and reproductive age group women to conserve reproductive function. AIM The purpose of the following study is to assess the clinicopathologic outcome of women with adnexal masses presenting with acute pain. SUBJECT...

INTRODUCTION To date, there have been no reports on the prevalence of adrenal masses in type 2 diabetic patients. The present study aimed to evaluate the prevalence of adrenal incidentaloma in type 2 diabetic patients in Japan. SUBJECTS We retrospectively evaluated the presence of adrenal masses using abdominal CT scans in 304 type 2 diabetic patients. In those with adrenal masses, we examine...

An intra-abdominal bronchogenic cyst (BC) is a very rare congenital anomaly caused by abnormal budding of the developing tracheobronchial tree. Intra-abdominal BCs are reported as retroperitoneal masses in most cases, many of which are located on the left side of the midline, the perigastric area, the left adrenal gland, or the superior body of the pancreas. Intra-abdominal BCs are frequently m...

actinomycosis is a rare and chronic infectious disease caused by a non-spore gram- positive, anaerobic bacterium that rarely infects the colon, in particular the left colon. a 53-year-old woman was referred to us due to chronic abdominal pain, bloating, a few episodes of bloody-mucous rectal discharge, and  change of bowel habits. her medical history and physical examination were unremarkable. ...

background: ovarian masses represent a range of pathology from benign cyst to highly aggressive malignant tumors. it has been estimated that gynecologic malignancy account for approximately 2% of all types of cancer in children, 60-70% of these lesions arise in the ovary.  methods: all ovarian masses which were resected or biopsied in mofid children's hospital from 2002 to 2012 were review...

OBJECTIVE Abdominal wall lesions often present as palpable masses. The purpose of this presentation is to provide an overview of the sonographic appearances of different abdominal wall lesions. METHODS Patients were scanned with high-frequency (5- to 12-MHz) linear transducers. Extended or panoramic views were recorded often to show the lesion in perspective to adjacent structures in the abdo...

OBJECTIVE To assess the accuracy and safety of percutaneous biopsy of abdominal masses guided by ultrasound. DESIGN Prospective study. SETTING Combined gastroenterology service, Scarborough Hospital. PATIENTS 108 Consecutive patients identified as having a discrete mass on diagnostic ultrasound examination of the abdomen. INTERVENTION A sample of tissue was obtained with an aseptic tech...