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Biomedical subjects

M F Roller

Publications and source records attributed to M F Roller.

3 recordsLinked to original sources
PubMed1976

Hypernephroma and associated ureteral involvement.

The propensity of a hypernephroma to invade the renal vein and even the inferior vena cava is widely known. However, in contrast to papillary carcinoma of the kidney, hypernephromas rarely involve the ureter. Review of the English literature reveals 42 reported cases of ureteral involvement. Most represented metastases as opposed to direct, contiguous extension which is extremely rare. C case of hypernephroma with contiguous castlike extension into the ureter without mucosal violation is presented. Mechanisms of ureteral involvement and implications regarding treatment of hypernephromas are discussed.

Adenocarcinoma↗
PubMed1975

Benign urethral polyp of prostatic urethra.

Benign fibroepithelial polyps of the posterior urethra are rare lesions, usually presenting with obstructive symptoms. Most often they occur in the pediatric age group and are believed to be of congenital origin. Our patient, a fifty-nine-year-old man, represents the oldest case reported in the English literature. Current thoughts on diagnosis, associated urologic findings, treatment and possible cause are discussed.

Fibroma↗