Bone marrow fibrosis and diagnosis of essential thrombocythemia

However, there are serious issues to beraisedconcerningtheauthors’analysisoftheclinicaldata,thecriteriausedtodiagnoseET,andthequantificationoffibrosis.Altogethertheauthors compared a heterogenous patient database, which included311 patients evaluated for presenting features, 299 for response totherapy,361forcomplicationrates,97forprogressionoffibrosis,andfour for reversal of BM fibrosis, so no single cohort with consistentfeatures was described throughout the study of 361 patients. Forexample, for the analysis of progression of fibrosis, only 97 (12%) oftheoriginal809patientsenteredintheUK-PT1trial