DEVELOPMENT AND CLINICAL SIGNIFICANCE OF PROTRUSION OF HYPERTROPHIC PROSTATE INTO THE BLADDER OBSERVED BY TRANSRECTAL ULTRASONOTOMOGRAPHY

Abstract

The development and clinical significance of protrusion of hypertrophic prostate into the bladder estimated by transrectal ultrasonotomography were discussed in this paper.
It was proved clearly that the protrusion of hypertrophic prostate did not affect dysuria in benign prostatic hypertrophy (BPH) patients but that the presumed circle area ratio (PCAR) on horizontal section of the prostate did it.
Independent from the weight of hypertrophic prostate, the protrusion of hypertrophic prostate did not appear until PCAR became over 0.75. Cases of BPH with PCAR over 0.75 could be classified into 2 groups according the presence or absence of the protrusion.
It was presumed from these observations that the development of protrusion depended upon the growth rate and elasticity of the surgical capsule of the prostate.