Our objective is to describe the characteristic CT findings of gastrointestinal (GI) tract perforations at various levels of the gastrointestinal system. It is beneficial to localize the perforation site as well as to diagnose the presence of bowel perforation for planning the correct surgery. CT has been established as the most valuable imaging technique for identifying the presence, site and cause of the GI tract perforation. The amount and location of extraluminal free air usually differ among various perforation sites. Further, CT findings such as discontinuity of the bowel wall and concentrated free air bubbles in close proximity to the bowel wall can help predict the perforation site. Multidetector CT with the multiplanar reformation images has improved the accuracy of CT for predicting the perforation sites.
Gastrointestinal Tract/*radiography ; Humans ; Intestinal Perforation/etiology/*radiography ; Peptic Ulcer Perforation/*radiography ; Tomography, X-Ray Computed

Enhanced z-axis coverage with thin overlapping slices in breath-hold acquisitions with multidetector CT (MDCT) has considerably enhanced the quality of multiplanar 3D reconstruction. This pictorial essay describes the improvements in 3D reconstruction and technical aspects of 3D reconstruction and rendering techniques available for abdominal imaging. Clinical applications of 3D imaging in abdomen including liver, pancreaticobiliary system, urinary and gastrointestinal tracts and imaging before and after transplantation are discussed. In addition, this article briefly discusses the disadvantages of thin-slice acquisitions including increasing numbers of transverse images, which must be reviewed by the radiologist.
Adult ; Aged ; Biliary Tract/radiography ; Female ; Gastrointestinal Tract/radiography ; Human ; Image Processing, Computer-Assisted/*methods ; Imaging, Three-Dimensional ; Liver/radiography ; Liver Transplantation/radiography ; Male ; Middle Aged ; Pancreas/radiography ; Radiography, Abdominal/*methods ; Tomography, X-Ray Computed/*methods ; Urography/methods

Metastases from lung cancer to the gastrointestinal tract are not exceptional findings, but their clinical manifestations are rare. We report a new case of multiple metastases to the small bowel from primary lung cancer. A 67 year-old man presented with acute abdominal pain and vomiting. The laboratory investigations were all within normal limits except leukocytosis. Lung radiography was done and it showed infiltration at the right upper lung field without any mass. Abdominal CT-scan demonstrated a small bowel mass with ileoileal intussusception and the patient underwent emergency surgery. The postoperative lung studies and pathological analysis confirmed primary lung cancer with small bowel metastasis.
Abdominal Pain ; Aged ; Emergencies ; Gastrointestinal Tract ; Humans ; Intussusception ; Leukocytosis ; Lung Neoplasms* ; Lung* ; Neoplasm Metastasis ; Radiography ; Vomiting

No abstract available.
Acidosis ; Adult ; Colonic Diseases/radiography ; Gastrointestinal Tract/*surgery ; Humans ; Intestinal Fistula/*radiography/*surgery ; Male ; *Tomography, X-Ray Computed

Stromal tumors of the gastrointestinal tract, especially of the esophagus, are rare. We had a case of malignant gastrointestinal stromal tumor(GIST) of the esophagus. A 46 years old woman was admitted for abnormal mass shadow in the chest radiograph. The mass was originated from the lower thoracic esophagus, and compressed the right lower pulmonary vein and the inferior vena cava. We removed the tumor externally without injuring of the esophageal mucosa via right posterolateral thoracotomy. The tumor was positive for CD 34 and CD 117, and diagnosed malignant GIST of the esophagus.
Esophagus* ; Female ; Gastrointestinal Stromal Tumors* ; Gastrointestinal Tract ; Humans ; Middle Aged ; Mucous Membrane ; Pulmonary Veins ; Radiography, Thoracic ; Thoracotomy ; Vena Cava, Inferior

No abstract available.
Administration, Oral ; Adult ; Colon/radiography ; Colonoscopy ; Female ; Foreign Bodies/complications/*radiography ; Gastrointestinal Tract/radiography ; Humans ; Lethargy/*chemically induced ; Mercury/*toxicity ; Tomography, X-Ray Computed

In this pictorial review, we introduce recent technical development of CT scanning in the imaging of the abdominal organs, namely, the gastrointestinal tract, colon, liver, biliary tract, and pancreas. With multidetector- row CT scanner, we can depict the abdominal organs by doing thin-section volumetric images and displaying the images in transverse axial, coronal, and sagittal plane reconstruction with isotropic images. We can see the interior of the abdomen directly as in the operating theatre. In addition, we can see the interior of the gastrointestinal tract as if we are flying through a tunnel.
Humans ; Imaging, Three-Dimensional ; Magnetic Resonance Imaging/methods ; *Radiography, Abdominal ; Tomography, Spiral Computed/*methods ; Adult ; Endoscopes, Gastrointestinal ; Female ; Gastrointestinal Diseases/radiography ; Gastrointestinal Tract/*radiography ; Humans ; Imaging, Three-Dimensional ; Male ; Middle Aged ; Tomography, Spiral Computed/instrumentation/*methods

OBJECTIVE: We wanted to report on our experience with modified radiology-guided percutaneous gastrostomy (MRPG) without endoscopic or nasogastric access for treating patients with complete obstruction of the upper digestive tract. MATERIALS AND METHODS: Fourteen oncology patients (13 had hypopharyngeal cancer and 1 had upper esophageal cancer) with complete obstruction of the upper digestive tract were recruited. Conventional percutaneous endoscopic gastrostomy (PEG) and radiologic (fluoroscopy-guided) percutaneous gastrostomy (RPG) were not feasible in all the patients. An MRPG technique (with a combination of ultrasound, an air enema and fluoroscopic guidance) was performed in these patients. RESULTS: We achieved successfully percutaneous gastrostomy using the modified technique in all patients without any major or minor complications after the procedure. CONCLUSION: A modified radiology-guided percutaneous gastrostomy technique can be safely performed in patients who failed to receive conventional PEG or RPG due to the absence of nasogastric access in the completely obstructed upper digestive tract.
Adult ; Aged ; Conscious Sedation ; Contrast Media/diagnostic use ; Esophageal Neoplasms/radiography/*surgery ; Female ; Gastrostomy/*methods ; Humans ; Intestinal Obstruction/radiography/*surgery ; Iothalamate Meglumine/diagnostic use ; Laryngeal Neoplasms/radiography/*surgery ; Male ; Middle Aged ; Radiography, Interventional ; Retrospective Studies ; Upper Gastrointestinal Tract/radiography/*surgery

Gardner syndrome is known as a variant of familial adenomatous polyposis. This syndrome is characterized by multiple intestinal polyposes, osteomas, and epidermoid cysts. In addition, dental abnormalities include an increased frequency of multiple odontomas, as well as supernumerary and impacted teeth. The authors report the case of a 7-year-old male patient with Gardner syndrome. Radiographic findings revealed multiple osteomas in both sides of the maxilla, multiple diffuse enostoses in both jaws, and a complex odontoma in the left mandibular body. Two years later, multiple epidermoid cysts on the scalp were found. Since this patient was suspected to have Gardner syndrome, the authors recommended gastrointestinal endoscopy to check for intestinal polyposis. Gastrointestinal endoscopic examination revealed multiple polyposes in the upper gastrointestinal tract and fundus of the stomach. As a result, the final diagnosis was Gardner syndrome.
Adenomatous Polyposis Coli ; Child ; Diagnosis ; Endoscopy, Gastrointestinal ; Epidermal Cyst* ; Gardner Syndrome* ; Humans ; Intestinal Polyposis* ; Jaw ; Male ; Maxilla ; Odontoma ; Osteoma* ; Radiography, Dental ; Scalp ; Stomach ; Tooth, Impacted ; Upper Gastrointestinal Tract

Computed tomography (CT) is widely used in postmortem investigations as an adjunct to the traditional autopsy in forensic medicine. To date, several studies have described postmortem CT findings as being caused by normal postmortem changes. However, on interpretation, postmortem CT findings that are seemingly due to normal postmortem changes initially, may not have been mere postmortem artifacts. In this pictorial essay, we describe the common postmortem CT findings in cases of atraumatic in-hospital death and describe the diagnostic pitfalls of normal postmortem changes that can mimic real pathologic lesions.
Adult ; Aged ; Autopsy/instrumentation/*methods ; Brain/pathology/radiography ; Female ; Forensic Medicine/instrumentation/*methods ; Gastrointestinal Tract/pathology/radiography ; Heart/radiography ; Humans ; Lung/pathology/radiography ; Male ; Middle Aged ; Myocardium/pathology ; Postmortem Changes ; Tomography, X-Ray Computed/*methods