Table 1 Immunohistochemical features of primary systemic nodal/extranodal and primary cutaneous ALCL, and the ALK+ diffuse large B-lineage lymphoma
Total numbers of patients | CD30 positive | CD15 positive | ALK positive | EMA positive | TIA-1 and/or granzyme B positive | T-cell antigens positive | Other | |
|---|---|---|---|---|---|---|---|---|
Primary systemic nodal/extranodal ALCL | 15 | 15/15 | 0/9 | 10/15 | 3/8 | 11/15 | 13/15 | Not applicable |
Primary cutaneous ALCL | 6 | 6/6 | Not available | 0/6 | Not available | 2/5 | 6/6 | Not applicable |
ALK+ diffuse large B-lineage lymphoma | 1 | 0/1 | Not available | 1/1 | Not available | Not available | 0/1 (CD3−CD4− CD5−CD8−) | CD138+, cytoplasmic IgG+, IgA−, IgM−, λ+, κ−, CD20−, CD79a− |
