diff --git a/IRaCIS.Core.Application/IRaCIS.Core.Application.xml b/IRaCIS.Core.Application/IRaCIS.Core.Application.xml
index c25be1f22..14dda6423 100644
--- a/IRaCIS.Core.Application/IRaCIS.Core.Application.xml
+++ b/IRaCIS.Core.Application/IRaCIS.Core.Application.xml
@@ -4849,7 +4849,7 @@
         </member>
         <member name="M:IRaCIS.Core.Application.Service.ReadingCalculate.PCWG3CalculateService.GetSiteVisitForTumorEvaluationByDay(IRaCIS.Core.Application.Service.Reading.Dto.ReadingCalculateDto,System.Nullable{System.Int32})">
             <summary>
-            获取肿瘤评估 逻辑抽离
+            获取肿瘤评估 逻辑抽离 这里还要返回上一次的结果
             </summary>
             <param name="inDto"></param>
             <param name="daysBetween"></param>
diff --git a/IRaCIS.Core.Application/Service/ReadingCalculate/PCWG3CalculateService.cs b/IRaCIS.Core.Application/Service/ReadingCalculate/PCWG3CalculateService.cs
index a44b7c1fe..76b639edf 100644
--- a/IRaCIS.Core.Application/Service/ReadingCalculate/PCWG3CalculateService.cs
+++ b/IRaCIS.Core.Application/Service/ReadingCalculate/PCWG3CalculateService.cs
@@ -1335,11 +1335,14 @@ namespace IRaCIS.Core.Application.Service.ReadingCalculate
                     {
                         if (lastTask != null)
                         {
-                            // 如果不是PD 需要把上一次的PD改为NoPD 这里去掉临时答案就是原始答案
-                            await _readingTaskQuestionAnswerRepository.BatchUpdateNoTrackingAsync(x => x.VisitTaskId == lastTask.VisitTaskId&&x.ReadingQuestionTrial.QuestionType== QuestionType.SiteVisitForTumorEvaluation, x => new ReadingTaskQuestionAnswer
+                            if (numOfDaysBetween == null)
                             {
-                                PCWGInterimAnswer = string.Empty,
-                            });
+                                // 如果不是PD 需要把上一次的PD改为NoPD 这里去掉临时答案就是原始答案
+                                await _readingTaskQuestionAnswerRepository.BatchUpdateNoTrackingAsync(x => x.VisitTaskId == lastTask.VisitTaskId && x.ReadingQuestionTrial.QuestionType == QuestionType.SiteVisitForTumorEvaluation, x => new ReadingTaskQuestionAnswer
+                                {
+                                    PCWGInterimAnswer = string.Empty,
+                                });
+                            }
 
                             var lastTaskResult = await _readingTaskQuestionAnswerRepository.Where(x => x.VisitTaskId == lastTask.VisitTaskId && x.ReadingQuestionTrial.QuestionType == QuestionType.SiteVisitForTumorEvaluation).Select(x => x.Answer).FirstOrDefaultAsync();
                             result.LastTaskResult = lastTaskResult;