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Biomedical subjects

R Ruiz

Publications and source records attributed to R Ruiz.

At least 127 records · Page 7Linked to original sources
PubMed1981

[Hepatic calcifications in isolated necrotizing, granulomatous hepatitis due to Brucella. A case report and review of the literature (author's transl)].

A case of isolated necrotizing, granulomatous hepatitis of Brucella origin is discussed, together with 6 similar cases reported in the published literature. The clinical picture is dominated by the history of the patient (occupation, geographical location), fever, right hypochondrial pain, and altered general condition. Radiological examination shows characteristic calcifications. Diagnosis is confirmed by serology, Brucella suis usually being involved. Pathological appearances are typical : large foci of hepatic necrosis surrounded by marked inflammatory zones with histiocytic cells arranged in palisades. The only possible treatment is surgical.

Brucellosis↗
PubMed1980

Ultrasonic diagnosis of primary carcinoma of the gallbladder: a review of 16 cases.

Sonographic findings in 16 patients (10 women, six men) with surgically documented gallbladder carcinoma are reported. Two principal forms are described: localized infiltrating, or fungating, tumors (eight patients) and diffuse tumors infiltrating the entire gallbladder wall (eight patients). In all cases, the tumors were adenocarcinomas. Eleven patients also had cholelithiasis. Contiguous extension and metastasis did not correlate with tumor size. The difficulties encountered an the differential diagnosis are discussed in relation to the different sonographic appearances.

Aged↗
PubMed1980

Transperitoneal live donor nephrectomy.

We review 171 anterior transperitoneal live donor nephrectomies. The transperitoneal approach provides optimum exposure for atraumatic dissection of the kidney and renal vessels. The total and major postoperative complication rates were 30.4 and 3.5 per cent, respectively. These results compare favorably to reported series of extraperitoneal live donor nephrectomies. Transperitoneal live donor nephrectomy is a safe and effective operation with low risk to the donor.

Nephrectomy↗
PubMed1980

[Ultrasonography characteristics of primary cancers of the gallbladder. A report on 16 cases (author's transl)].

Primary cancer of gallbladder was detected by ultrasonography in 16 patients (10 women, 6 men), and confirmed at operation. Two main types of lesion were found: 8 localized forms (infiltrating or vegetating), and 8 diffuse forms with infiltration of the gallbladder wall. The lesion was an adenocarcinoma in each case, and there was associated lithiasis in 11 patients. Extension by contiguity or metastases is independent of the size of the cancer. Problems related to etiological and differential diagnosis of these lesions are discussed in relation to the different ultrasonography appearances observed.

Adenocarcinoma↗
PubMed1979

EBV-specific humoral antibodies in nasopharyngeal carcinoma patients in Cuba.

Sera of 24 patients with nasopharyngeal carcinoma (NPC) and of 60 healthy donors were studied for presence of IgG and IgA antibodies against different antigens induced by Epstein--Barr virus (EBV). The results obtained demonstrate that NPC in Cuba, as in other countries, is accompanied by elevated antibody titers against EBV-specific IgG antibodies, whose levels strongly differ from those of healthy persons. Patients with NPC in Cuba had higher titers of antibody against VCA of EBV in comparison with patients of Caucasian origin in those countries where NPC, the same as in cuba, is rarely found. Cuban NPC patients had high levels of antibody against EA, often higher than in NPC patients in endemic zones of this disease.

Adolescent↗
PubMed1979

Alkaline reflux gastritis associated with abnormalities of the gastrojejunostomy.

Alkaline reflux gastritis is presently accepted as being part of the postgastrectomy syndrome complex. Our experience with this entity has revealed a frequent association of alkaline reflux gastritis with functional or organic abnormalities of the gastric remnant and/or newly formed gastrojejunostomy. The role alkaline reflux gastritis plays as a separate entity in the symptomatic patient remains to be clinically determined.

Adult↗
PubMed1976

Alkaline reflux gastritis. A study in forty postoperative duodenal ulcer patients.

A study to determine the incidence of alkaline reflux gastritis in forty postoperative duodenal ulcer patients has been presented. Since the majority of patients had evidence of gastritis, the precise role that gastritis plays in the production of symptoms is discussed but needs further clarification. It is suggested that the presence of gastritis may only represent an incidental or associated finding in many patients presenting with symptoms presumably characteristics of alkaline reflux gastritis.

Adult↗
PubMed1976

Percutaneous cholangiography with the Chiba University needle: a new, safe, and accurate method in the diagnosis of cholestatic syndromes.

A modified technique of percutaneous transhepatic cholangiography utilizing the Chiba University needle is described. This new technique employs injection of dye through a thin flexible 22 gauge needle with a short bevel while it is slowly withdrawn under a fluoroscopic monitoring. The results of several investigators are reviewed and indicate that failure to visualize the biliary radicals with the Chiba University needle virtually rules out extrahepatic obstruction. It is anticipated that this technique will replace the traditional sheathed needle cholangiography as a diagnostic modality in the evaluation of the jaundiced patient.

Cholangiography↗
PubMed1975

Clinical experiences with colonoscopy. A review of 100 cases.

Our experience with 100 colonoscopic examinations are described. The clinical value of the procedure is outlined and the minimal degree of attendant morbidity, when performed by a competent endoscopist, are emphasized. The indications and contraindications for this relatively recently devised diagnostic and therapeutic modality should be commonly known. The procedure should be done whenever indicated.

Abdomen↗