@article{oai:niigata-u.repo.nii.ac.jp:00002157, author = {Hashimoto, Shigeo and Toba, Ken and Aoki, Sadao and Tsuchiyama, Junjiro and Tsukada, Nobuhiro and Takahashi, Hidenobu and Takahashi, Masuhiro and Aizawa, Yoshifusa}, issue = {2}, journal = {Leukemia Research, Leukemia Research}, month = {Feb}, note = {The leukemic lymphoblasts ofa patient expressed CD7, CD13, CD33, CD34, HLA-DR and cytoplasmic CD3ε. He was diagnosed with ALL, and successfully treated with a conventional chemotherapy for ALL. The disease relapsed 3 times, and the character of the cells gradually altered, i.e. CD56 expression increased and CD13, CD7 and cCD3ε decreased. The phenotype of the relapsed ALL was, therefore, compatible with M/NK-AL. Some of M/NK-AL may be closely related with T/myeloid-biphenotypic pro-T blasts, and both types of AL may develop a tendency to express myeloid antigens, and they may belong to the category of immature T lymphoid precursors.}, pages = {215--219}, title = {Acute T-lymphoblastic leukemia relapsed with the character of myeloid/NK cell precursor phenotype: A case report.}, volume = {26}, year = {2002} }