Biomedical subjects

C H Meng

Publications and source records attributed to C H Meng.

At least 19 recordsLinked to original sources

PubMed1977

Testicular venography in the nonpalpable testis.

Localization and identification of a nonpalpable testis can be done accurately by testicular venography. The identification of the pampiniform plexus is essential to the localization of the testis by this method. We evaluated 15 patients 3-39 years of age with 21 nonpalpable testes. Fourteen successful testicular venograms were performed showing four retroperitoneal testes, four testes within the inguinal canal, and two testes located in the superficial inguinal pouch. Three nonpalpable testes were thought to be due to true agenesis, and one venogram was performed after prior surgical removal of the testis. Catheterization of the left testicular vein was accomplished with greater ease and accuracy (79%) to the right side (42%).

Adolescent↗

PubMed1977

Transitional cell tumors of the kidney: how diagnostic is the angiogram?

Angiograms of 51 tests cases including 34 transitional cell carcinomas, eight inflammatory lesions, four hypernephromas, and five miscellaneous disorders were shown to six radiologists for analysis of the angiographic features and specific diagnosis. Overall accuracy was 60% with a false positive rate of 44%. The most common false positive diagnosis occurred with inflammatory lesions (seven of eight). False negative cases were variously called normal, hypernephromas, inflammatory, or other. Vessel encasement (26%), neovascularity (56%), and tumor blush (15%) were recognized far less frequently in the transitional cell tumors of this series than in previous reports in the literature. Further, when hydronephorsis was present, the angiogram was not helpful in determining the etiology. It is concluded that the "classic" angiographic findings associated with this tumor are only moderately reliable since they can be mimicked by other conditions.

Angiography↗

PubMed1977

Minilaparotomy as an aid to diagnosing liver disease.

A series of 168 patients who underwent minilaparotomy was analyzed. Twenty of these patients underwent omentoportography only and 148, open transhepatic cholangiogram. Diagnosis was obtained in 92 per cent of those undergoing evaluation of jaundice, and cholangiography was successful in 99 per cent of those with dilated ducts and in 91 per cent of the over-all group. tthe complications of the procedure have been infrequent and have included sepsis, wound infection and renal failure and, early in the series, bile leak and bleeding. The relative merits of this procedure compared with those percutaneous transhepatic cholangiography and endoscopic retrograde cholangiography were evaluated.

Adult↗

PubMed1976

Epinephrine in the angiographic evaluation of experimental kidney trauma.

Selective nephroangiography was performed in the dog following percutaneous needle biopsy to evaluate epinephrine response. Traumatized vessels respond normally to epinephrine, often with increased extravasation as the vessel recovers from epinephrine. A selective inability of the traumatized vessel to constrict was not noted.

Animals↗

PubMed1974