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IMMUNOHISTOCHEMICAL FINDINGS:
In order to further characterize the lymphoid infiltrate, paraffin section immunohistologic studies were performed on the soft palate and uvula mass biopsies. The following results were found:
| Antigen/Antibody | Usual Reactivity | Result |
|---|---|---|
| CD20/L26 (image 13) | B-cells | Focal aggregates of positive cells, few scattered positive cells. |
| CD2 (image 14) | T-cells | Numerous positive cells. |
| CD3 (image 15) | T-cells | Scattered positive cells. |
| CD4 (image 16) | T-cell subset | Few scattered positive cells. |
| CD5 (image 17) | T-cells, B-cell subset | Similar to CD3 |
| CD7 (image 18) | T-cells/Natural Killer | Similar to CD3 |
| CD8 (image 19) | T-cell subset | Scattered positive cells, greater than CD4. |
| CD56 (images 20, 21) | T-subset/Natural Killer | Numerous positive cells |
| CD57/Leu 7 (image 22) | T-subset/Natural Killer | Rare positive cells |
| EBV-ISH (EBERS) (images 23, 24) |
Epstein-Barr virus | Numerous positive cells |
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