الفهرس 
CT Anatomy of StomachOnly 14 pages are availabe for public view
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Abstract
Gastric cancer is a common deadly cancer worldwide. Adenocarcinoma accounts for over 95% all malignant gastric neoplasms. Development of stomach cancer is a complex process involving environmental factors, host susceptibility, viral or bacterial infection, risk factor as male gender, family history, diets high in nitrates and salts, gastric adenomas, previous partial gasterectomy and other causes . Stomach cancer usually does not become symptomatic until there is extensive disease. Early symptoms are nonspecific. Weight loss, nausea, vomiting, anorexia and fatigue are frequently present at the time of diagnosis. Endoscopy and conventional barium radiological studies have traditionally been considered the primary modalities for the detection of gastric carcinoma due to their ability to provide excellent mucosal details. With advancement in computer and scanner technology, MDCT now allows improved detection and staging of stomach cancer. In addition, it allows evaluation of intramural, extramural and metastatic disease. The aim of our study was to To study the value of Multidetector Computed Tomography in diagnosis of gastric carcinoma. This study involved 38 patients (22 males and 16 females) presented with different GIT symptoms. The age range of our patients was from 28 to 73 years with the mean age of 49 years. All patients underwent MDCT examination of the abdomen and pelvis for preoperative tumor localization and diagnosis. The most frequently encountered clinical presentations among gastric carcinoma were abdominal pain (n=19, 29 %), progressive loss of weight (n = 11, 17%) and colic (n = 10, 15%). However, nausea, black stool and loss of appetite were the least presentations in only 1 patient (1%). Analysis of the data obtained by MDCT revealed that in 22 out of 28 gastric carcinoma patients (79%) had gastric wall thickening only. Presence of a mass lesion was identified in 6 patients (21%) . By analyzing the data obtained by MDCT we found that TNM classification for staging of gastric carcinoma as follow: Twenty one (75%) patients were Stage II, One (3%) patients were Stage IIIB & Six (22%) patients were Stage IV Analysis of the data in our study revealed that the sensitivity, specificity, positive and negative predictive values and total accuracy of MDCT in diagnosis of gastric carcinoma were using MDCT was, 96.0%,84.6%,96.4%,84.6% and 86.8 % respectively.