diff --git a/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs b/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
index c30f36659..b45106a0f 100644
--- a/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
+++ b/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
@@ -112,12 +112,24 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
                     var prefix = path.Substring(1, path.LastIndexOf('/') - 1);
 
                     //每次都用一个新的名字
-                    var maskFileName = $"{Path.GetFileName(path)}.{batchId}_MaskDicom";
+                    var maskFileName = string.Empty;
 
-                    if (path.Contains("_MaskDicom"))
+                    if (path.Contains(".MaskDicom_"))
                     {
                         //清理缓存的里面的遮盖图，多次遮盖同一张图时，清除缓存很重要
                         await _oSSService.DeleteFromPrefix(path, true);                    //清理缓存的里面的遮盖图，多次遮盖同一张图时，清除缓存很重要
+
+                        //本身就是遮盖的图，那么就要要替换guid
+                        var length = Guid.Empty.ToString().Length + ".MaskDicom_".Length ;
+
+                        var restorePath = item.Path[..^length];
+
+                        maskFileName = $"{Path.GetFileName(restorePath)}.MaskDicom_{batchId}";
+                    }
+                    else
+                    {
+                        //没有遮盖的，直接加上.批次_MaskDicom
+                        maskFileName = $"{Path.GetFileName(path)}.MaskDicom_{batchId}";
                     }
 
                     await _oSSService.UploadToOSSAsync(outPutStream, prefix, maskFileName, false);
@@ -174,11 +186,11 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
 
             foreach (var item in idPathList)
             {
-                if (item.Path.EndsWith("_MaskDicom"))
+                if (item.Path.Contains(".MaskDicom_"))
                 {
                     await _oSSService.DeleteFromPrefix(item.Path, true);
 
-                    var length = Guid.Empty.ToString().Length + "_MaskDicom".Length + 1;
+                    var length = Guid.Empty.ToString().Length + ".MaskDicom_".Length;
                     var newPath = item.Path[..^length];
 
                     okList.Add(new InstanceIdPath() { Id = item.Id, Path = newPath });
@@ -186,16 +198,16 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
                     await _dicomInstanceRepository.BatchUpdateNoTrackingAsync(t => t.Id == item.Id, u => new DicomInstance() { Path = newPath, IsMasked = false });
                 }
 
-                if (item.Path.EndsWith("."))
-                {
-                    await _oSSService.DeleteFromPrefix(item.Path, true);
+                //if (item.Path.EndsWith("."))
+                //{
+                //    await _oSSService.DeleteFromPrefix(item.Path, true);
 
-                    var newPath = item.Path[..^1];
+                //    var newPath = item.Path[..^1];
 
-                    okList.Add(new InstanceIdPath() { Id = item.Id, Path = newPath });
+                //    okList.Add(new InstanceIdPath() { Id = item.Id, Path = newPath });
 
-                    await _dicomInstanceRepository.BatchUpdateNoTrackingAsync(t => t.Id == item.Id, u => new DicomInstance() { Path = newPath, IsMasked = false });
-                }
+                //    await _dicomInstanceRepository.BatchUpdateNoTrackingAsync(t => t.Id == item.Id, u => new DicomInstance() { Path = newPath, IsMasked = false });
+                //}
 
 
             }