Title:Relative amount of epithelium, muscle, connective tissue and lumen in prostatic hyperplasia as a function of mass of tissue resected
标题：前列腺增生的上皮、肌肉、结缔组织与腔体相对量作为切除组织块的指数
PURPOSE:
1) The relative amounts of epithelium, connective tissue, muscle and gland lumen in benign prostatic hyperplasia have been reported but they have not been correlated with prostate size.
2) We determine if the relative amount of prostatic tissue varies with prostate size.
目的:
1) 关于良性前列腺增生的上皮、结缔组织、肌肉与腺体腔相对量已有报道，但均尚未与前列腺的大小相关联。
2)作者测定前列腺组织的相对量是否因前列腺的大小而异。
MATERIALS AND METHODS:
1) Paraffin blocks of transurethrally resected prostate tissue were randomly chosen from the archives of 58 patients with benign prostatic hyperplasia.
2) Two new slides per patient were made and stained with prostate specific antigen or Masson trichome, respectively.
3) A total of 20 images from each slide were captured using a high resolution camera, digitized and analyzed with computer software for the relative percentage of the various tissue components.
材料与方法:
1)随机选择58名良性前列腺组织增生患者，经尿道切除前列腺组织，并用石蜡固定。
2)每位病人作两张新切片，用前列腺特异性抗原或Masson丝状体分别染色。
3)用高分辨率照相机对每一切片摄20个影像，应用电脑软件数码分析各种组织成分的相对百分比。
RESULTS:
1) As the amount of prostate tissue resected increased from less than 10 to greater than 70 gm, the epithelium had a 4-fold increase from 5.37 to 21.92%, the muscle component had a 42% decrease from 28.46 to 16.62%, the lumen doubled from 7.05 to 14.01% and the connective tissue remained relatively unchanged from 35.58 to 31.53%.
2) There was a statistically significant difference in all components of prostatic tissue except for connective tissue when comparing prostates less than 30 versus greater than 30 gm., including epithelium 6.52 versus 16.10% (P<0.01), muscle 28.54 versus 20.78%(P<0.01), lumen 7.42 versus 14.58% (P<0.01) and connective tissue 35.74 versus 32.45%(P<0.06).
3) The stroma-to-epithelium and muscle-to-epithelium ratios each had a 9-fold decline (P=0.01).
结果:
1)由于切除从小于10gm至大于70gm前列腺组织，上皮组织从5.37%至21.92%增加了4倍;肌肉组织从28.46%至 16.62%减少了42%，腔体从7.05 %倍增至14.01%，结缔组织从35.58%至31.53%保持相对不变。
2) 30gm以下与30gm以上前列腺相比，除结缔组织外，所有前列腺组织均具有统计学上的显著性差异，上皮组织6.52%对16.10%(P<0.01)，肌肉组织28.54%对20.78%(P<0.01)，腔体组织7.42%对14.58%(P<0.01)以及结缔组织35.74%对32.45%(P<0.06)。
3)基质对上皮与肌肉对上皮比率均呈9倍下降(P=0.01)。
CONCLUSIONS: As the prostate increases in size, there is statistically significant more epithelium and lumen, and less muscle tissue.
结论：当前列腺大小增加，上皮与腔体显著增大，而肌肉组织显著减少。
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