# 成釉细胞鳞状化生(Ameloblast Metaplasia Squamous) - 器官 / 系统:牙齿 / 消化系统(tooth / alimentary-system) - NTP 数据编号:ntp-0253 - 规范 URL:https://www.labsmart.cn/ntp/tooth-ameloblast-metaplasia-squamous.html - 中文图谱总页锚点:https://www.labsmart.cn/ntp-atlas.html#tooth-ameloblast-metaplasia-squamous - 原始出处:https://ntp.niehs.nih.gov/atlas/nnl/alimentary-system/tooth/Ameloblast-MetaplasiaSquamous - 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 成釉细胞损伤后可出现鳞状化生(squamous metaplasia)。萎缩以细胞质减少(单个成釉细胞变短)为特征,而鳞状化生以成釉细胞柱状层丧失并被鳞状上皮取代为特征(Figure 2、Figure 4,箭头)。 ## 病变描述(中文) 成釉细胞损伤后可出现鳞状化生(squamous metaplasia)。萎缩以细胞质减少(单个成釉细胞变短)为特征,而鳞状化生以成釉细胞柱状层丧失并被鳞状上皮取代为特征(Figure 2、Figure 4,箭头)。 ## 诊断与分级建议(NTP 共识,中文) 成釉细胞鳞状化生一旦出现即应诊断并分级。鳞状化生的严重程度分级基于病变范围及病变中鳞状细胞的层数。 ## 英文原文 · Comment Squamous metaplasia can be seen following injury to the ameloblasts. While atrophy is characterized by decreased cytoplasm (shortening of individual ameloblasts), squamous metaplasia is characterized by loss of the columnar layer of ameloblasts and replacement by squamous epithelium ( Figure 2 and Figure 4 , arrows). ## 英文原文 · Recommendation Squamous metaplasia of the ameloblasts should be diagnosed and graded whenever present. Severity grading for squamous metaplasia is based on the extent of the lesion and the number of layers of squamous cells in the lesion. ## 配图 - https://www.labsmart.cn/ntp-atlas-images/ntp_0182.jpg - https://www.labsmart.cn/ntp-atlas-images/ntp_0189.jpg 整理:北京天融慧通科技有限责任公司(LabSmart)| https://www.labsmart.cn