Reports of a volvulus (twisting) of the sigmoid colon can be found in a papyrus from ancient Egypt. However, sigmoid volvulus represents a spectrum of disease across the globe from young men in central Africa to the elderly institutionalised patients in Western Europe and the USA. As the population ages the prevalence of sigmoid volvulus is likely to rise. As an acute presentation, it represent...

Ileosigmoid knot, also known as compound volvulus, is an unusual and a rare cause of intestinal obstruction. We are reporting a case of ileosigmoid knot in a 30-year-old male, who presented with lower abdominal pain. On examination, there was tenderness in the suprapubic area and later, the patient developed features of peritonitis. Exploratory laparotomy revealed a large volume of haemorrhagic...

yan et al. has pointed out that the combination of orcement learning and Sigmoid-based neural ork sometimes leads to instability of the learning. is paper, it is proposed that a Gauss-Sigmoid neural ork, in which continuous input signals are put into a oid-based neural network through a RBF network, ilized for reinforcement learning. It is confirmed simulation of the same task as in Boyan et al...

A 74-year-old man suffered from jejunal perforation and adhesion to sigmoid colon due to adenocarcinoma associated with intraductal papillary mucinous neoplasm (IPMN) arising in a jejunal heterotopic pancreas. The jejunal lesion showed direct extension to the sigmoid colon, which was mistaken as sigmoid colon cancer by surgeons. Malignant transformation is a rare complication of a heterotopic p...

A perforated sigmoid colon cancer within an inguinal hernia is extremely rare. This unexpected finding is usually discovered during surgery and causes an unavoidable septic evolution. Here, we describe the case of an 84-year-old man who presented with fever, abdominal distension, and a painful, enlarged, left scrotum. A CT showed a left, incarcerated, inguinal hernia containing a perforated sig...

A 63-year-old Caucasian woman was admitted to hospital as hypotensive with abdominal tenderness and vaginal discharge. Laboratory investigations showed microcytic anaemia, low albumin and high white cell count. Computerised tomography scans revealed small bowel dilatation, sigmoid diverticula, ascites and pelvic fluid. The endometrial pipelle was positive and vaginal swab was negative for actin...

We report about a previously healthy 72-year-old woman, presented with 6 days of left lower quadrant abdominal pain and constipation. There was no report of fever, melena, hematochezia or change in appetite. The physical exam demonstrated a distended abdomen with palpable left lower quadrant pain, without guarding. CT showed images compatible with a sigmoid diverticulitis and a calcification of...