PubMed Health⌕ Search

Biomedical subjects

J A Belis

Publications and source records attributed to J A Belis.

14 recordsLinked to original sources
PubMed1979

Ureterosigmoidostomy followed by carcinoma of the colon.

Adenocarcinoma of the colon developing as a late complication or ureterosignoidostomy has been reported with increasing frequency. A patient is presented who developed adenocarcinoma of the colon 28 years after ureterosigmoidostomy for bladder exstrophy and 13 years after conversion of the ureterosigmoidostomy to an ileal conduit. The colonic tumor was documented at postmortem examination to be at the ureterosigmoidostomy site. Because of the potential late development of adenocarcinoma of the colon, careful follow-up of patients with ureterosigmoidostomies, particularly those performed in children many years ago, is indicated.

Adenocarcinoma↗
PubMed1979

Pleural effusion secondary to ureteral obstruction.

Urinary tract obstruction may produce a pleural effusion detectable by chest x-ray film. This uncommon finding must be differentiated from intrathoracic and intraperitoneal causes of pleural effusion, including intrathoracic metastases when a malignant tumor is the cause of the urinary tract obstruction.

Aged↗
PubMed1979

Genitourinary leiomyomas.

Leiomyomas may originate from any anatomic location of smooth muscle in the genitourinary system but are uncommon neoplasms. Five unusual cases of leiomyomas arising from the renal pelvis, bladder, spermatic cord, and glans penis are presented. The leiomyoma arising from the glans penis in a three-year-old boy is the first case of a leiomyoma in that location noted in the literature. A review of leiomyomas from each genitourinary structure of origin is presented.

Child, Preschool↗
PubMed1979

Simultaneous traumatic bladder perforation and disruption of the prostatomembranous urethra.

The simultaneous occurrence of disruption of the prostatomembranous urethra and traumatic perforation of the bladder is seldom diagnosed before operation for the urethral injury. The presence of posterior disruption can make radiological diagnosis of the concomitant bladder perforation difficult. Lack of a palpable bladder a few hours after urethral injury should arouse suspicion of a combined injury. Careful bladder examination is indicated at the time of operation for all cases of posterior urethral injury to eliminate possible bladder perforations and the significant increase in morbidity and mortality associated with their presence.

Adult↗
PubMed1979

Idiopathic female intersex with clitoromegaly and urethral duplication.

Idiopathic female intersex presents in the neonate with characteristic anomalies of the external genitalia, complete and separate phallic and vaginal urethras and vesical outlet obstruction. Management of this disorder should initially focus upon adequate urinary drainage and proper sex assignment in the neonate. Successful management and surgical reconstruction of the external genitalia should later result in normal female development.

Clitoris↗
PubMed1979

Renal cell carcinoma.

We reviewed the total experience with renal cell carcinoma at West Virginia University Hospital since its opening 15 years ago. While the conclusions are not new, our series of 89 cases reemphasizes the capriciously ubiquitous nature of the disease. Varied presenting signs and symptoms are commented upon, and an attempt to relate stage, grade, and survival rates is made.

Adenocarcinoma↗
PubMed1978

Duplication of male urethra.

Male urethral duplication is an unusal anomaly with many variants including complete duplication from the bladder to the glans penis as well as incomplete and abortive forms. Two cases are presented of duplication of the male urethra of the epispadiac incomplete type. A chart has been constructed to facilitate categorization of the various forms of urethral duplication in the male.

Adult↗
PubMed1975

Effect of prolactin on androgen metabolism by the guinea-pig sex accessory organs.

The in vitro actions of prolactin on the metabolism of testosterone by the guinea-pig liver and sex accessory organs have been investigated under a variety of conditions including various concentrations of ovine or bovine prolactin, addition of reduced nicotinamide adenine dinucleotide phosphatate (NADPH) or nicotinamide adenine dinucleotide (NAD) to incubation media and various lengths of incubations. Treatment of the epithelium and muscle of the guinea-pig seminal vesicle with NAD elicited a shift from normal reductive metabolism of testosterone toward oxidative metabolism. This shift toward oxidative metabolism of testosterone was particularly marked in the muscle of the guinea-pig seminal vesicle. Ovine prolactin was highly effective in inhibiting the reductive metabolism of testosterone by the sex accessory organs. This effect appeared primarily as a decrease in dihydrotestosterone formation and was noted in both the presence and absence of NADPH or NAD. Oxidized metabolites, androstenedione and androstandione, were apparently insensitive to prolactin treatment in vitro. Variations induced by prolactin in the concentrations of intracellular androgens may be important in either the normal or abnormal growth and function of male sex accessory organs.

Animals↗