# 核增大(Karyomegaly) - 器官 / 系统:肾脏 / 泌尿系统(kidney / urinary-system) - NTP 数据编号:ntp-0155 - 规范 URL:https://www.labsmart.cn/ntp/kidney-karyomegaly.html - 中文图谱总页锚点:https://www.labsmart.cn/ntp-atlas.html#kidney-karyomegaly - 原始出处:https://ntp.niehs.nih.gov/atlas/nnl/urinary-system/kidney/Karyomegaly - 授权:美国联邦政府作品,公有领域;引用请标注 NTP Nonneoplastic Lesion Atlas - 适用说明:仅供科研使用,不用于临床诊断 ## 一句话结论 核巨大化(karyomegaly)推测源于核酸复制而核未分裂。其特征为细胞核显著增大,主要见于近端曲小管细胞(Figure 1)。 ## 病变描述(中文) 核巨大化(karyomegaly)推测源于核酸复制而核未分裂。其特征为细胞核显著增大,主要见于近端曲小管细胞(Figure 1)。受累细胞核常染色质深染并伴多个核仁(Figure 2)。核巨大化与化学物给药相关。一般认为是肿瘤前病变,在慢性研究中可导致肾小管肿瘤。 ## 诊断与分级建议(NTP 共识,中文) 核巨大化一旦出现即应诊断并给出严重程度分级。核巨大化的细节应在病理学描述中讨论(例如受累的肾小管节段)。 ## 英文原文 · Comment Karyomegaly is presumed to result from nucleic acid replication without nuclear division. It is characterized by marked enlargement of nuclei observed predominantly in the proximal convoluted tubule cells ( Figure 1 ). Affected nuclei are often hyperchromatic with multiple nucleoli ( Figure 2 ). Karyomegaly has been associated with chemical administration. It is generally considered preneoplastic, leading to tubule neoplasia in chronic studies. ## 英文原文 · Recommendation Karyomegaly should be diagnosed and given a severity grade whenever present. Details of the karyomegaly should be discussed in the pathology narrative (e.g., the tubular segment affected). ## 配图 - https://www.labsmart.cn/ntp-atlas-images/ntp_1080.jpg - https://www.labsmart.cn/ntp-atlas-images/ntp_1077.jpg 整理:北京天融慧通科技有限责任公司(LabSmart)| https://www.labsmart.cn