Skip to main content

Table 4 Immunohistochemical Results, Background Lymphocytes

From: Thymomas: a cytological and immunohistochemical study, with emphasis on lymphoid and neuroendocrine markers

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%

  1. MNT = multinodular thymoma
  2. -/+ = variably (large numbers of intratumoral CD20+ lymphocytes in type B2 (n = 1) and type B3 (n = 3) thymomas associated with autoimmune disorder)
  3. * = numerous large stromal CD20+ lymphoid aggregates
  4. S = single cells
Back to article page

Diagnostic Pathology

ISSN: 1746-1596

Contact us