Objective To investigate the CT manifestations of inflammatory and tumorous diseases in peritoneum, and to improve the abilities of diagnosis and differential diagnosis. Methods Conventional non-enhanced and enhanced CT were performed in 63 patients. The mean value of peritoneal structures in normal persons and patients were measured and calculated. The CT features of abnormal peritoneum were divided into 5 classes that were collated with their pathological changes. The numbers of each CT class appeared in inflammatory and tumorous diseases were countered. The data were treated with statistical methods for comparing the differences.Results (1) In normal persons, the non-enhanced and enhanced mean CT values were (-88.60?18.30) and (-78.73?16.90) HU, respectively, while in patients, they were(-38.63?15.64) and (-1.42?14.42) HU, respectively. CT value of abnormal peritoneum was significantly higher than that of normal group. (2) There were 183 places of abnormal peritoneum in five classes: firstly, fine and blur attenuation in 65 places (56 inflammations and 9 tumors); secondly, linear or strip thickening of peritoneum in 25 places (12 inflammations and 13 tumors); thirdly, attenuation of disorganized strip and piece or nodus in 50 places (8 inflammations and 42 tumors); fourthly, soft tissue mass in 28 places (5 inflammations and 23 tumors); and fifthly, cake peritoneum in 15 places ((2 inflammations) and 13 tumors). The data showed statistical differences (P

[摘 要] 目的：探讨解偶联蛋白2（UCP2）在皮肤黑色素瘤（SKCM）中的预后价值，分析UCP2表达与SKCM肿瘤浸润免疫细胞（TIC）之间的相关性。方法：通过GEPIA在线数据库分析SKCM组织及正常皮肤组织中UCP的差异性表达，探讨UCP表达与SKCM预后之间的关系。HPA数据库分析UCP2在正常皮肤单细胞中的表达情况，使用TISCH分析UCP2在SKCM中单细胞水平的表达情况。TIMER分析UCP2表达与总SKCM、原发性SKCM和转移性SKCM患者肿瘤微环境（TME）中主要免疫细胞及其标志物的相关性。结果：UCP2在SKCM癌组织中高表达，UCP2高表达患者的OS和DFS均长于低表达患者（均P<0.05）。正常皮肤和SKCM单细胞分析显示，UCP2表达与免疫细胞亚群存在一定的正相关，同时与SKCM中趋化因子、受体、组织相容性复合物、免疫抑制剂和免疫激活剂五类免疫途径密切相关（均P<0.05）。亚组分析结果显示，UCP2高表达与总SKCM和转移性SKCM患者高OS密切相关（均P<0.05）。UCP2表达与总SKCM、原发性SKCM、转移性SKCM患者TME中TIC之间存在明显的正相关（均P<0.05），但是与原发性SKCM相关性相对较弱。UCP2表达水平与3组SKCM患者TME中免疫细胞标志物存在明显的正相关（均P<0.05）。结论：UCP2在SKCM组织中高表达，UCP2与SKCM中TIC呈正相关，是TME中重要的调控因子，与其预后密切相关。

[摘 要] 目的：探讨核因子κB抑制因子a（NFKBIA）表达与皮肤黑色素瘤（SKCM）患者预后及其与肿瘤微环境免疫浸润的相关性。方法：利用GEPIA2数据库分析正常皮肤和SKCM组织中NFKBIA的表达差异，GEPIA2和Ualcan数据库分析NFKBIA与SKCM预后关系，TIMER和TISIDB数据库分析NFKBIA与SKCM中TIL和免疫调节基因的关系。选用TISCH和CancerSEA数据库从单细胞水平分析NFKBIA与SKCM细胞亚群及其相关的功能状态关联性。选取湖北省荆门市第二人民医院保存的14例SKCM患者的石蜡组织标本，通过免疫组织化学染色法验证SKCM组织和癌旁组织中NFKBIA蛋白的表达水平。结果：NFKBIA在SKCM组织中呈低表达，并且低表达的SKCM患者预后差（P<0.05）。NFKBIA表达与B细胞、CD8+ T细胞、CD4+ T细胞、巨噬细胞、中性粒细胞和DC浸润水平呈正相关关系（均P<0.01）。NFKBIA表达与SKCM中TIL丰度和免疫调节基因呈正相关关系（均P<0.01）。NFKBIA在SKCM单细胞免疫细胞中表达，且与肿瘤微环境中细胞分化和炎症呈正相关关系（R=0.28、0.23，均P<0.05）。免疫组织化学染色结果证实，NFKBIA蛋白在SKCM组织中阳性表达率显著低于癌旁组织（35.71% vs 85.71%，P<0.05）。结论：NFKBIA在SKCM组织中呈低表达，与SKCM免疫细胞浸润相关，可作为SKCM预后的标志物及治疗靶点。