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S Pamos

Publications and source records attributed to S Pamos.

5 recordsLinked to original sources
PubMed1998

[Magnetic resonance cholangiopancreatography (MRCP) versus endoscopic retrograde cholangiopancreatography (ERCP): diagnostic usefulness].

Magnetic resonance cholangiopancreatography (MRCP) is a new noninvasive technique to examine the biliopancreatic tract that have a high diagnostic accuracy. Thus it becomes an appealing modality that can avoid invasive approaches. The purpose of this study was to evaluate the sensitivity and specificity of MRCP in comparison to endoscopic retrograde cholangiopancreatography (ERCP). We studied 41 patients (24 male, 17 female), median age 64.2 years (range 20 to 86 years), in which MRCP and later ERCP were performed; results of both techniques were compared. In the assessment of biliary tract (n = 39), sensitivity/specificity was 100/94.4% in normal bile ducts (n = 18); 100/100% in choledocholithiasis (n = 13); 100/100% in sphincter of Oddi dysfunction (n = 2), and 100/83.3% in neoplasm (3 ampullary tumors, 2 cholangiocarcinomas). In the evaluation of pancreatic duct (n = 32), sensitivity/specificity was 100/95.8% in normal pancreatic duct (n = 23); 80/100% in chronic pancreatitis (n = 5), and 100/75% in pancreatic carcinoma (n = 3). MRCP has very high sensitivity and specificity in the evaluation of the biliary and pancreatic ducts, and can avoid to perform purely diagnostic ERCP, although further studies are required to better assess the effectiveness of the technique.

Adult↗
PubMed1998

[Focal nodular liver hyperplasia of atypical presentation].

Focal nodular hyperplasia is a benign hepatic tumor that usually appears in young women. Diagnosis of focal nodular hyperplasia is often incidental when an ultrasonography or computed tomography is performed by other reasons, because its course is generally asymptomatic; the presence of a central fibrous scar is characteristic. Management in focal nodular hyperplasia must be conservative, with ultrasonographic follow-up, and it only must be treated when patients are symptomatics or in case of tumoral enlargement. We report a case of FNH in which symptomatic presentation and the absence of central stellate scar in ultrasonography, computed tomography and magnetic resonance leads to a misdiagnostic of hepatic adenoma, that conditioned a surgical resection. The later examination was diagnostic of focal nodular hyperplasia.

Adenoma↗
PubMed1997

[Collagenous colitis: presentation of 12 cases].

Collagenous colitis (CC) is a cause of chronic aqueous diarrhea with normal radiologic study and endoscopic appearance of the colonic mucosa. Histologically, it is defined by the presence of a thickened subepithelial collagenous band and inflammatory changes of the mucosa. The cause of CC is currently unknown, although several mechanisms have been proposed, such as an inflammatory, autoimmune, origin, disregulation in collagen synthesis, plasma vasculosis and a possible role of bacterial or drug toxins. The clinicopathological data of 12 patients (9 females and 3 males) with a mean age of 52.4 years diagnosed by histologic criteria are presented. Aqueous diarrhea was observed in all the patients with a mean number of 5.4 stools/day during a time period between 3 weeks and 10 years (mean, 14.7 months). In a 6 patients allergies and/or associated diseases, mainly rheumatologic diseases were found. Laboratory and endoscopic data were normal or unspecific, with colon biopsy being carried out in all the patients. Several treatments were tested with good response with sulphasalazine derivatives, corticoids, antibiotics, and mebeverine, with no solution to the diarrhea in 2 patients. A review of the literature is also provided.

Adult↗
PubMedDate not supplied

[Non-aneurysmatic aortic dysphagia].

Esophageal compression by a vascular structure is a rare cause of dysphagia, the aberrant right subclavian artery being the most common congenital abnormality. Aortica dysphagia is usually observed in the elderly, especially in hypertensive women with cardiopathy and degenerative osteopathy. We report a 73-year-old woman with dysphagia, caused by a non-aneurysmatic aortic elongation, who presented progressive dysphagia, which ended in aphagia associated with heart failure. The diagnostic approach to these patients is discussed. The patient received cinitapride and, following treatment for heart failure, remains asymptomatic after a 3-year follow-up period, although manometric alterations persist.

Aged↗