Objective To analyze quantitatively the histological components, and to observe the morphological changes of the transition zone in benign hyperplastic prostates (BPH) and adult normal prostates. Methods The quantitative morphometry of 40 BPH specimens obtained from suprapubic transvesical prostatectomy and 10 normal prostatic specimens (controls) were performed with computer-assisted image analysis system,and all the samples were stained with hematoxylin and eosin (HE) and the Masson trichrome.The area percentages of stromal (smooth muscle and connective tissue),glandular epithelial and luminal components,the average areas of acini,lumens and epithelia,and the heights of epithelial cells were quantitated,respectively. Results ①The mean area percentages of different components between control group and BPH group were as follows: smooth muscles,(23.83?8.53)% vs (35.35?8.33)% ( P 0.05);epithelia,(26.26? 7.45)% vs (17.76?4.61)% (P0.05).②The average areas of acini, epithelia and lumens of control group and BPH group were ( 0.087?0.028)mm 2 vs (0.062?0.030)mm 2 (P

Objective: To explore the value and disadvantage of micro-mirror in the intracranial aneurysm surgery. Methods: Micro-mirror was used to assist microsurgical clipping to 36 intracranial aneurysms in 31 cases, of which 3 were carotid-ophthalmic artery aneurysms, 3 anterior choroidal artery aneurysm, 11 were posterior communicating artery aneurysms, 7 were middle cerebral artery aneurysms, 10 anterior communicating artery or anterior cerebral artery aneurysms, and the others were a posterior cerebral artery aneurysm and a posterior inferior cerebellar artery aneurysm. The micro-mirror was used before and after clipping to observe the anatomic features of necks hidden behind and medial to aneurysms, to visualize surrounding neurovascular structures, and to verify the optimal clipping position. Intraoperative indocyanine green fluorescein angiography confirmed the success of sufficient clipping. Results: All aneurysms were clipped successfully. The parent arteries were occluded temporarily in 26 cases, and 9 aneurysms ruptured during the operation. Postoperative follow-up lasted from 2 weeks to 1 year. After operations digital subtraction angiography (DSA) were repeated in 10 cases, computed tomography angiography(CTA) in 21 cases, and no insufficient clipping or occlusion of parent arteries were revealed. Conclusions Micro-mirror assisting microsurgical clipping to the intracranial aneurysm is conducive to accurate clipping, and is a convenient and practical operation.