 |
 |
 |
 |
 |
Is it a Carcinoma or a Lymphoma? |
||||
 |
||||
| Figure 4. Immunohistochemical Stain: Leucocyte Common Antigen Original Magnification: 40X The undifferentiated malignant cells are negative for leucocyte common antigen (LCA). The pale, unstained malignant cells contrast with the brwon, positive staining of normal lymphoid cells for LCA. |
||||
|
|
|
|
|