Ectopic prostate
Introduction
Prostate ectopic introduction Lowley (1929) first reported prostate ectopic, suggesting that prostate tissue that occurs outside the normal part of the prostate is called prostate ectopic. Prostate ectopic can occur in different parts, such as the bladder triangle, bladder neck, bladder wall muscle layer, penile root, residual urinary tract end, prostate urethra, Zhang Zhengwu, etc. report huge pelvic prostate ectopic (weight 400g) Zhang Dingjin et al reported a case of foreskin prostate ectopic, which is rare. The prostate in the bladder is often misdiagnosed as a bladder tumor. The prostate ectopic in the urethra of the prostate often appears as a form of "urethral polyps." basic knowledge The proportion of illness: 0.0005%--0.0007% Susceptible people: male Mode of infection: non-infectious Complications: Infertility
Cause
Prostatic ectopic cause
Effects of the anterior pituitary of the urethra (30%):
At the 12th week of the embryo, the prostatic sac is formed, and the ectodermal cells of the urethra prostate form the prostatic primordium. These primordia are divided into 5 groups, which constitute the original leaves of the prostate. These primitive leaves merge into adulthood, and their boundaries disappear. In addition to the prostatic primordia, some of the residual tissues of the middle and adjacent renal ducts in the bladder neck and the like form the same but smaller urethral epithelial branches in the bladder neck and other areas. These smaller side branches are usually physiologically No function, does not develop into the prostate, but under certain environmental conditions, they may enter the developmental state, causing the occurrence of prostate ectopic.
Sex hormone stimulation (30%):
The factors of ectopic development of the prostate are not fully understood. Developmental defects caused by the effects of environmental factors during the embryonic period, and pre-pubertal stimulation of sex hormones may play a role in the mechanism of prostate ectopic.
Prostatic epithelial ectopic (30%):
Gutierrez and Nesbit believe that there are three possibilities for their occurrence: 1 The prostate bud that should normally regress will re-grow with some stimulation during sexual maturity. 2 ectopic growth of the prostate epithelium. 3 metastatic epithelial metaplasia (metaplasia) or glandular epithelium like prostate.
Prevention
Prostate ectopic prevention
The etiology of this disease is not clear, and may have certain correlation with environmental factors, genetic factors, dietary factors, and mood and nutrition during pregnancy. Therefore, it is impossible to directly prevent the disease against the cause. Early detection, early diagnosis, and early treatment are important for indirect prevention of this disease. It can improve sperm quality and avoid complications such as low sperm motility and prolonged liquefaction time.
Complication
Prostatic gastrointestinal complications Complications, infertility
Due to the change of normal prostate tissue position, the secretion of prostatic fluid can be reduced, or there is no secretion, and the number of spermatozoa is reduced. At the same time, due to its nutritional effect on sperm cells, sperm motility can be reduced, liquefaction time is prolonged, sperm The number is reduced, so it is clinically possible to have infertility, so this disease should be paid attention to by clinicians and surgical treatment as soon as possible.
Symptom
Prostate ectopic symptoms Common symptoms Hematuria, frequent urination, acute urinary retention
Prostatic ectopic clinical manifestations of hematuria, frequent urination or urinary obstruction, Butterick (1971) reported a group of 68 patients with urethral prostate ectopic, 96.5% have hematuria, young male hematuria patients must consider the possibility of the disease Sex, followed by urinary frequency and urinary obstruction, sometimes blockage of blood clots can lead to acute urinary retention, pelvic prostate ectopic general history, large volume, more than the pressure of the bladder or bladder neck caused by urinary obstruction.
Examine
Prostate ectopic examination
Bladder B-ultrasound or CT examination can find filling defects in the bladder, which is difficult to distinguish from bladder tumors. The identification depends on urethral cystoscopy and biopsy. The ectopic prostate tissue is small, often single, and slightly yellow. No nipple formation, smooth surface, polypoid under the ectopic urethra of the urethra, biopsy can confirm the nature.
Diagnosis
Prostate ectopic diagnosis
In addition to clinical symptoms, it is necessary to rely on urethroscopic cystoscopy and biopsy to confirm the diagnosis.
