Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0007097 (carcinoma)
 152,788 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Angiographic findings in one giant cell carcinoma, one cystadenocarcinoma, one poorly vascularized mucinous cystadenocarcinoma, as well as in two avascular (gastrin- and glucagon-producing) islet-cell tumors of the pancreas are described. Two hypervascularized islet-cell tumors are presented for comparison and a case of tumorous chronic pancreatitis in a child is reported because ot its rarity. The aggressiveness of the giant cell carcinoma of the pancreas was demonstrated by its expansive growth. In the case of cystadenocarcinoma angiography revealed the tumor with hepatic metastases not diagnosed at explorative laparotomy. The relative hypovascularity in the case of mucinous cystadenocarcinoma was unusual. Both avascular islet-cell tumors simulated a pancreatic pseudocyst and the final diagnosis was made only by immunoassay. Chronic pancreatitis in a child presented with marked hypervascularization.
 ...
PMID:Angiographic findings in some rare pancreatic tumors. 18 40

The practical approach to the investigation of diarrhea must be logical and based on anatomic considerations. The site of the underlying disorder may be determined by the clinical picture, and the logic of investigation will be influenced by the history. Important specific investigation in a case of colonic diarrhea include a careful rectal examination, stool inspection, sigmoidoscopy, rectal biopsy and barium enema study. Colonoscopy has been used, but its role has yet to be defined. In a case of small-bowel steatorrhea or diarrhea quantitative chemical estimation of the daily output of stool fat is useful, and to this investigation is added a small-bowel radiograph series and, if the radiographic findings are abnormal, small-bowel biopsy. Other investigations for small-bowel disease may include the breath test with carbon-14-labelled glycocholic acid, the lactose tolerance test, duodenal aspiration for giardiasis, analysis of serum immunoglobulins and, on occasion, isolation of vasoactive intestinal polypeptide hormone (which may aid the diagnosis of functioning tumours of the pancreas or small bowel). Investigations for pancreatic steatorrhea include abdominal radiography, performance of the secretin test and testing of the response to pancreatic replacement therapy. In some patients it may be useful to use endoscopic retrograde cholangiopancreatography to differentiate pancreatic carcinoma and chronic pancreatitis.
 ...
PMID:Symposium on diarrhea. 3. Investigation of chronic diarrhea. 19 Nov 73

Serum Ribonuclease (RNase, EC. 3. 1. 4. 22) of normal persons and of patients with chronic pancreatitis, or pancreatic cancer was determined with poly (C) as substrate. Strikingly abnormal elevations occured in the serum RNase of patients with pancreatic cancer (p less than 0.001). Average serum RNase values of 18 normal persons, 10 patients with chronic pancreatitis and 26 patients with pancreatic cancer were 92, 118, and 249 units, respectively. In patients with pancreatic cancer, we compared the RNase level with four histologic types (ductar cell adenocarcinoma, anaplastic cell carcinoma, acinar cell carcinoma, and islet cell carcinoma). Adenocarcinoma showed higher activity than the other histologic types (p less than 0.005). When we compared the serum of pancreatic cancer and pancreatic cancer tumor extract with normal serum and normal pancreas extract, strikingly different phosphocellulose chromatographic pattern were evident. The correlation of increased serum RNase levels with tumor histology and different chromatographic pattern may explain the new enzyme production in cancer patients, and have biological significance in the development of pancreatic cancer.
 ...
PMID:Serum ribonucleases in pancreatic cancer: relation to tumor histology. 21 87

Records of 346 patients were studied to determine the reliability and diagnostic value of pancreatic scanning. In 157 the pancreatic diagnosis was established subsequent to scanning. The scan was abnormal in 28 of 34 patients (82%) with pancreatic neoplasm, and in 21 of 26 patients (81%) with chronic pancreatitis. Of 71 with normal scans, 56 (79%) had a normal pancreas, and 15 had pancreatic disease (a false negative rate of 21%). Of the 86 with abnormal scans, the pancreas was diseased in 56 (65%), and of the others, 14 had extrapancreatic conditions known to be associated with a high incidence of scan abnormalities. In obstructive jaundice all 21 patients with pancreatic carcinoma had abnormal scans (and the scan accurately diagnosed all four cases of bile duct carcinoma). A normal scan reliably indicated that the cause of jaundice was outside the pancreas. In chronic abdominal pain an abnormal scan was unreliable, but a normal scan excluded pancreatic disease with reasonable accuracy.
 ...
PMID:Radionuclide pancreatic scanning: a retrospective analysis. 27 99

Twenty patients with massive abdominal hemorrhage related to chronic pancreatitis, pancreatic neoplasms and arteriovenous malformations were studied angiographically. Abdominal hemorrhage drained most frequently into the gastrointestinal tract, but also flowed through cutaneous drain sites and fistulas, intraperitoneally, into pseudocysts and once into a large pancreatic tumor. The most common angiographic observation in pancreatitis was pseudoaneurysm formation. Both patients with arteriovenous malformation had dilated, racemose feeding arteries and early dense filling of the draining veins. Three patients had pancreatic carcinoma and documented bleeding from gastroesophageal varices related to portal or splenic vein occlusion by the tumor. Five patients were treated by vasopressin infusion, balloon tamponade, or therapeutic embolization.
 ...
PMID:Angiography of massive hemorrhage secondary to pancreatic diseases. 30 42

Lowered, normal or raised alpha1-antitrypsin levels were found in 81 patients with acute or chronic relapsing pancreatitis and pancreatic carcinoma. 51 patients with chronic pancreatitis did not have alpha1-antitrypsin deficiency. Thus, in contrast to other reports, alpha1-antitrypsin deficiency and chronic pancreatitis do not seem to be in common association.
 ...
PMID:alpha1-Antitrypsin in pancreatic diseases. 31 Apr 4

By the use of [11C]methionine and positron computed tomography (PCT), images of the pancreas were obtained in 32 patients. The injection of between 10 and 20 mCi of this product enables four to six transverse sections to be obtained. Seventeen of the patients studied had no exocrine pancreatic disease, and in all these cases the pancreas was clearly visible. In four cases of pancreatic carcinoma and one of retroperitoneal tumor, there were abnormalities visible. In five cases of chronic pancreatitis, no pancreatic uptake was observed. In a sixth case, concentration was visible, but only in the head of the pancreas. One case of acute pancreatitis, which showed no concentration during the acute phase, returned to normal after recovery. When visible, the pancreas was easily located and distinguishable from the intestinal image, except in two cases that were uninterpretable for technical reasons. No false positive or negative was observed, but a differential diagnosis between cancer and pancreatitis was impossible.
 ...
PMID:[11C]methionine pancreatic scanning with positron emission computed tomography. 31 98

In order to assess the efficiency of ultrasonic diagnosis of the pancreas, echographic findings in 481 patients were compared with the final diagnosis in the case sheets. Agreement between the echographic results and the final diagnosis was found in 94.6% with normal findings, in 77% of patients with pancreatic carcinoma and in 85% of patients with chronic pancreatitis. Altogether we have found agreement between the echographic results and the final diagnosis in 86.6% of all cases referred for diagnosis of the pancreas. The results correspond to the fiqures given by Rettenmaier. With adequate experience ultrasonic diagnosis should therefore be used as early as possible with a broad indication for all diseases of the pancreas.
 ...
PMID:[Echographic diagnosis of the pancreas. Catamnesis of 481 cases (author's transl)]. 41 90

All confirmed cases of pancreatic carcinoma in bona fida residents of Olmsted County, Minnesota, from 1935 through 1974 were identified and reviewed. The average annual age-adjusted incidence rates were 7.4 for males and 3.5 for females per 100,000 population. Rates increased with age for both sexes and increased slightly over the 40-year period of study, with lower incidence rates observed for rural inhabitants in the first 2 decades. At the time of diagnosis, almost 75% of patients were 60 years of age or older and adenocarcinoma was histologically identified in 92% of the cases. One-year survival was 11%, and all patients died within 3 years of the initial diagnosis. An association between pancreatic carcinoma and diabetes was noted. There does not appear to be a clear association with cholelithiasis or chronic pancreatitis. There was a high percentage (20%) of multiple primary carcinomas and an overrepresentation of metal workers observed among patients with pancreatic carcinoma.
 ...
PMID:Cancer of the pancreas in Olmsted County, Minnesota, 1935-1974. 42 4

A total of 70 cases of cholestatic jaundice have been studied by gray scale ultrasonography in order to evaluate how this technic may be used to differentiate between intra- and extrahepatic cholestasis. In 37 out of 42 patients (88.1%) with jaundice of extrahepatic origin, dilatation of the biliary tree was demonstrated, whereas in all the 28 patients with intrahepatic cholestasis biliary dilatation was clearly excluded. In addition, gallstones in the biliary ducts were detected in 12 out of 20 cases and enlargement of the head of the pancreas (due to carcinoma or chronic pancreatitis) was often correctly diagnosed (nine out of 13 cases). These results suggest that ultrasonography should represent the first step in the diagnostic approach to cholestasis. Information gained from this noninvasive technic should make it possible to correctly plan the more complex investigations (endoscopic retrograde cholangiopancreatography and percutaneous transhepatic cholangiography).
 ...
PMID:Ultrasound in the diagnosis of cholestatic jaundice. 43 99


<< Previous 1 2 3 4 5 6 7 8 9 10 Next >>