Abstract: The present application relates to an ex vivo or in vitro method to determine the presence or absence of a mutation or a variation in the NF-E2 gene in a sample from a patient suffering from a myeloid neoplasm or solid tumor whereby said method comprises: a) obtaining a nucleic acid sample from the patient, b) detecting the presence or absence of a mutation in the nucleic acid sample comprising the NF-E2 gene or a fragment thereof, characterized in that the presence of the mutation is an indication of a myeloid neoplasm or solid tumor, whereby the mutation is determined by comparing the nucleic acid sequence obtained from the sample with SEQ ID NO:1 or the complement thereof.

Abstract: The present application relates to an ex vivo or in vitro method to determine the presence or absence of a mutation or a variation in the NF-E2 gene in a sample from a patient suffering from a myeloid neoplasm or solid tumor whereby said method comprises: a) obtaining a nucleic acid sample from the patient, b) detecting the presence or absence of a mutation in the nucleic acid sample comprising the NF-E2 gene or a fragment thereof, characterized in that the presence of the mutation is an indication of a myeloid neoplasm or solid tumor, whereby the mutation is determined by comparing the nucleic acid sequence obtained from the sample with SEQ ID NO:1 or the complement thereof.