Utility of a new notation to visualize flow cytometry analysis results: first preliminary comparison with immunohistochemistry to detect CD30 expression on T-cell lymphoma cells

Table 1 T-cell lymphoma subtypes examined in this study by both flow cytometry and immunohistochemistry

Subclassification	Number of cases examined by flow cytometry	Number of cases positive for CD30 by flow cytometry (percentage to left column)	Number of cases positive for CD30 by immunohistochemistry (percentage to left column)
PTCL	104	22 (21.1%)	17 (77.2%)
AITL	39	3 (7.7%)	1 (33.3%)
ALT	35	18 (51.4%)	15 (83.3%)
ALCL	17	6 (35.3%)	6 (100%)
ENKL	16	6 (37.5%)	6 (100%)

Abbreviations: PTCL peripheral T-cell lymphoma, NOS, AITL angioimmunoblastic T-cell lymphoma, ATL adult T-cell lymphoma, ALCL anaplastic large cell lymphoma, ENKL extranodal NK/T-cell lymphoma/nasal type
Two hundred eleven T-cell lymphoma cases biopsied from 2012 to 2019 were examined by flow cytometry. Positivity for CD30 was not obtained by flow cytometry in the following subtypes; subcutaneous panniculitis-like T-cell lymphoma, mycosis fungoides, primary cutaneous CD30-positive lymphoproliferative disorder, and enteropathy-associated T-cell lymphoma

ISSN: 1471-2407