the aim of this paper is to study co-prolongations of central extensions. we construct the obstruction theory forco-prolongations and classify the equivalence classes of these by kernels of homomorphisms between 2-dimensional cohomology groups of groups.

a 41-year old mentally retarded patient presented acutely with a 3 day history of vomiting and absolute constipation.  intestinal obstruction was diagnosed following an abdominal x ray. at laparotomy, a left paraduodenal hernia was present, without incarceration of small bowel. the herniated loops were reduced and the hernia orifice closed. the anatomy, treatment and importance of considering t...

conclusions the fev1/fev6 ratio can be used as a valid surrogate for fev1/fvc in the diagnosis of airway obstruction, especially for screening purposes in high-risk populations for copd. moreover, fev6 is an acceptable alternative for fvc in detection of restrictive pattern. results this study shows that the current cut-off points used to detect obstruction and restriction can be replaced by fe...

intestinal pseudo-obstruction is a condition in which the intestine’s ability to push food through is reduced. it often leads to the dilation of the various parts of the bowel. it can be idiopathic or inherited from a parent, or caused by another disease. we report a rare case of human immunodeficiency virus (hiv) infection in a 3-year-old boy who referred with acute abdominal pain, and was lat...

a 4-year-old female native goat with the history of inappetence and no defecation was referred to the department of clinical sciences, school of veterinary medicine of shiraz, shiraz, southern iran. during exploratory laparotomy, pyloric obstruction and displacement of the abomasum to the left side was observed. obstruction of pylorus was due to a ball-shaped phytobezoar. the goat was followed ...

femoral hernias account for 2% to 4% of groin hernias, are more common in women, and are more appropriate to present with strangulation and require emergency surgery. this condition may lead to symptoms of bowel obstruction or strangulation and possible bowel resection-anastomosis. to the best of our knowledge, there is few reports of strangulated femoral hernia. we herein present an 82-year-ol...

objective: to determine the epidemiological, clinical, laboratory characteristics as well as outcome of 411 patients with bowel obstruction in southern iran. methods: this was a cross-sectional study being performed in shahid faghihi hospital of shiraz between 2006 and 2012. we reviewed the medical charts of the 411 patients with initial diagnosis of bowel obstruction who were admitted to our c...

background: mesocolic hernias are extremely rare. their exact incidence is still unknown. the clinical features are nonspecific and range from bilious vomiting and chronic abdominal pain exacerbated by meals, to asymptomatic presentations incidentally discovered during surgery. preoperative diagnosis still is difficult in spite of imaging techniques currently available. case report: in this stu...

statement of problem: nasopharyngeal obstruction by adenoid enlargement is one of the main causes of mouth breathing. diagnostic indices of nasopharyngeal obstruction by lateral cephalometric radiography are controversial. purpose: the purpose of this study was to diagnose the nasopharyngeal obstruction by means of lateral cephalometric radiography. materials and methods: in this research two g...

colonic lipoma is a benign neoplasm that can lead to colonic obstruction but concomitant intussusception is rare in adults. in this case, colocolic intussusception due to a lipoma in the descending colon had occurred. by laparatomy, we diagnosed the problem , but reduction was impossible . so resection of the colon with mass was done and anastomosed. after surgery and 3 years follow up the pati...