Results of the blinded and independently performed evaluation of 295 bone marrow biopsies according to WHO criteria by a panel of pathologists from Vienna and Cologne
| . | Vienna . | Cologne . | Concordance . |
|---|---|---|---|
| ET | 160 | 179 | 144 |
| ET/PV | 2 | 8 | 2 |
| PV | 1 | 2 | 1 |
| Early PMF (prodromal) | 87 | 93 | 71 |
| Advanced PMF (classic) | 6 | 6 | 6 |
| MPN-U | 37 | 5 | 5 |
| UC | 2 | 2 | 1 |
| . | Vienna . | Cologne . | Concordance . |
|---|---|---|---|
| ET | 160 | 179 | 144 |
| ET/PV | 2 | 8 | 2 |
| PV | 1 | 2 | 1 |
| Early PMF (prodromal) | 87 | 93 | 71 |
| Advanced PMF (classic) | 6 | 6 | 6 |
| MPN-U | 37 | 5 | 5 |
| UC | 2 | 2 | 1 |
A concordant histologic diagnosis was revealed in 230 patients (78%) concerning the total cohort. Regarding the patients that were primarily diagnosed by the clinicians as presumptive ET or early PMF, consensus was 115 of 295 (73%).
ET/PV indicates overlapping BM features between ET and PV; and UC, unclassifiable.