Marker
|
Thymoma Type
|
---|
|
A
|
AB
|
B1
|
B2
|
B3
|
MNT
|
CD57
|
S
|
S
|
S
|
S
|
S
|
S
|
CD3
|
S
|
+
|
+
|
+
|
+
|
+
|
CD5
|
S
|
+
|
+
|
+
|
+
|
+
|
CD20
|
-
|
+
|
+
|
-/+
|
-/+
|
+*
|
CD1a
|
-
|
+
|
+
|
+
|
+
|
+
|
CD99
|
-
|
+
|
+
|
+
|
+
|
+
|
Ki67/MIB1
|
<10%
|
>80%
|
>80%
|
>80%
|
>80%
|
>80%
|
- MNT = multinodular thymoma
- -/+ = variably (large numbers of intratumoral CD20+ lymphocytes in type B2 (n = 1) and type B3 (n = 3) thymomas associated with autoimmune disorder)
- * = numerous large stromal CD20+ lymphoid aggregates
- S = single cells