This erratum is being published to correct the printing errors on page 159 of the article entitled 'Two Cases of Acute Lymphoblastic Leukemia With an e1a3 BCR-ABL1 Fusion Transcript' by Sang-Yong Shin, Jin-Hee Cho, Hee-Jin Kim, Jun-Ho Jang, Seung-Tae Lee, and Sun-Hee Kim in Ann Lab Med 2015;35:159-161, doi/alm.2015.35.1.159. An e1a2-type BCR-ABL1 fusion transcript comprises about 70% of Philadelphia positive ALL cases. Therefore, the second sentence on page 159 of this article should be corrected as follows.
Before correction
The BCR-ABL1 fusion gene is found in about 25% of adult ALL cases. An e1a3-type BCR-ABL1 fusion transcript is found in about 70% of cases, and major breakpoint transcripts (e13a2, e14a2) are found in about 30% of cases.
After correction
The BCR-ABL1 fusion gene is found in about 25% of adult ALL cases. An e1a2-type BCR-ABL1 fusion transcript is found in about 70% of cases, and major breakpoint transcripts (e13a2, e14a2) are found in about 30% of cases.