.

atlas/models.py

@@ -113,6 +113,16 @@ class Subspecialty(models.Model):
         return self.name
 
 
+class Differential(models.Model):
+    condition = models.ForeignKey(
+        Condition, on_delete=models.CASCADE
+    )
+    case = models.ForeignKey(
+        "Case", on_delete=models.CASCADE, related_name="differentialcase"
+    )
+    text = models.TextField(null=True, blank=True)
+
+
 @reversion.register
 class Case(models.Model):
     # class SubspecialtyChoices(models.TextChoices):
@@ -137,6 +147,7 @@ class Case(models.Model):
     )
 
     history = models.TextField(null=True, blank=True)
+    discussion = models.TextField(null=True, blank=True)
 
     # findings = models.TextField(null=True, blank=True)
 
@@ -145,6 +156,8 @@ class Case(models.Model):
 
     condition = models.ManyToManyField(Condition, blank=True)
 
+    differential = models.ManyToManyField(Condition, through=Differential, related_name="casedifferential")
+
     sign = tagulous.models.TagField(
         to=Sign, blank=True, help_text="Radiological signs in the question"
     )