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Biomedical subjects

V M Pais

Publications and source records attributed to V M Pais.

8 recordsLinked to original sources
PubMed1977

Idiopathic pelviureteric varices.

Pelviureteric varices are well-documented sequelae of renal vein thrombosis, but there have been only 10 prior reports of idiopathic renal vein varicosities. Herein we report 3 more cases and review the literature. Two thirds of the patients presented with hematuria; one-fourth had flank pain, and one-third had saphenous vein varicosities. Pyelographic findings include scalloped deformities of the upper ureter and pelvis with displacement and intraluminal filling defects. The diagnosis may be suspected from the excretory urogram, but venography is definitive. Excision and ligation of the varicose veins were curative in all but 3 patients who required nephrectomy for life-threatening hemorrhage.

Adult↗
PubMed1977

Infertility in an XX male.

A case of an infertile male subject with 46XX female karyotype is reported. A testicular biopsy revealed hyalinized tubules with Sertoli cells and marked interstitial cell hyperplasia. Chromosomal studies showed the presence of 46 chromosomes with an XX sex chromosome constitution, confirmed with trypsin banding. XX male subjects present an interesting diagnostic problem and need to be differentiated from XXY male subjects with Klinefelter's syndrome. The clinical features of this rare syndrome are discussed and the literature is reviewed.

Adult↗
PubMed1976

Paraurethral cysts in female neonate.

Paraurethral cysts in the female neonate are uncommon lesions. All reported cases have either ruptured spontaneously or responded to simple marsupialization. However, complete urologic evaluation is mandatory because they simulate ectopic ureteroceles in appearance. Herein is reported our experience with 5 patients. The etiology, embryogenesis, natural history, differential diagnosis, and treatment are discussed.

Cysts↗
PubMed1976

Radiolucent defects within renal pelvis.

Radiolucent filling defects within the renal pelvis are common findings in diagnositc urography, and because of their myriad causes the diagnostician is often faced with a challenging problem. Several of the more unusual causes of renal pelvis filling defects are described and their diagnosis, pathophysiology, and therapy discussed.

Adenocarcinoma↗
PubMed1976

Arteriovenous aneurysm of kidney after open renal biopsy.

Renal arteriovenous fistula following percutaneous renal biopsy is being reported frequently in the literature. For this reason, open renal biopsy has gained popularity as a safer alternative procedure. We present a case of a large arteriovenous fistula seen two years after open renal biopsy. The presentation was highly atypical, mimicking an acute gastrointestinal event, rather than sudden hemorrhage in a previously asymptomatic fistula.

Arteriovenous Fistula↗
PubMed1975

Reversible hydronephrosis in the neonate with urinary sepsis.

Hydroureteronephrosis without vesicoureteral reflux or lower-urinary-tract obstruction is uncommon in infants. There has been considerable interest in and controversy over the cause and management of this entity. We have cared for three neonates with severe hydroureteronephrosis after acute urinary tract infections, who were treated without operation.

Acute Disease↗
PubMed1975

Chemolysis of residual stone fragments after extensive surgery for staghorn calculi.

Chemical dissolution of residual stone fragments was attempted in twelve instances via nephrostomy tube irrigation. Appropriate solutions containing either hemiacidrin or sodium bicarbonate were used for struvite and uric acid stones, respectively. Precautions were taken to prevent and recognize outflow obstruction and urinary infection. Seventy-five per cent of the stones so treated were completely dissolved, and there were no major complications. The incidence of retained stones, natural history, and indications for chemical dissolution are reviewed.

Adult↗