obsolete_B- and T-cell mixed leukemia true B- and T-cell mixed leukemia ICD9:207.80 UMLS:C0023464 acute biphenotypic leukemia Orphanet:98837 http://purl.obolibrary.org/obo/MONDO_0020322 Replaced by Mondo term MONDO_0020322, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0020322 DOID:9953 MedDRA:10067399 MESH:D015456 ICDO:9805/3 SCTID:278453007 NCIT:C4673 An acute leukemia of ambiguous lineage characterized by blasts which coexpress myeloid and T or B lineage antigens or concurrent B and T lineage antigens. (WHO, 2001) ICD10:C95.0 3.88.0 EFO:1000828