改良Nuss手术治疗漏斗胸

结直肠癌是临床常见的恶性肿瘤之一，其发病率和病死率均较高。大多数结直肠癌是从腺瘤样息肉恶变而来，早期检出具有重要临床意义。纤维结肠镜是目前最准确的检出结肠息肉的方法，但存在一定痛苦，并且部分患者不能完成全结肠的检查。CT结肠成像作为一种快速无创的检出结肠病变的方法，不仅具有良好的耐受性，而且能够全面评价肠腔内、外及整个腹腔脏器的病变，易于被患者接受。本文对44例结直肠占位性病变患者行CT结肠成像检查，比较各种后处理方法的优缺点，以期寻找出一种最佳的后处理方法组合以更好地显示病变。

An experimental study of percutaneous nucleoplasty of the cervical intervertebral disc

【Abstract】Objective To observe histopathological and ultramicropathological characteristics of bladder mucosa in interstitial cystitis（IC）patients.Methods Bladder mucosal specimens were harvested from 16 patients with IC and 16 normal controls. Two groups were match in sex and age. They were characterized by bladder pain, urinary frequency and pelvic pain associated with dyspareunia.They were negative in urinalysis and urine culture.They were diagnosised according to NIDDK criteria.All patients had PUF scores＞15, PST positive and Glomerulations in cystoscopy.Biopsy from two groups were observed through light microscope and transmission electron microscope. Results There are regions which appeare to be detached in IC patients' bladder mucosa through light microscope. There are many mast cells infiltrating in mucosa layer through light microscope in IC patients, there are significant difference between two groups(t=12.724, P＜0.05). There are regions between cells in which portions of adjacent umbrella cells appeare to be detached in IC patients' bladder mucosa. Mast cells in IC group manifestate degranulation in electron microscope, there are significant difference between two groups(χ2=18.762, P＜0.05). Conclusions There are regions between cells in which portions of adjacent umbrella cells appeare to be detached in IC patients' bladder mucosa to increased permeability of bladder mucosa, There are many mast cells infiltrating in mucosa layer through light microscope in IC patients。