PMID- 22090723 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20111123 LR - 20211021 IS - 0971-6866 (Print) IS - 1998-362X (Electronic) IS - 1998-362X (Linking) VI - 17 IP - 2 DP - 2011 May TI - Deletion of ABL/BCR on der(9) associated with severe basophilia. PG - 100-3 LID - 10.4103/0971-6866.86198 [doi] AB - Chronic basophilic leukemia is a rare form in chronic myeloid leukemia patients. Only limited number of reports are available. Herein, we describe a patient who presented with fatigue, weight loss, leucocytosis, prominent basophilia, and mild eosinophilia. On biopsy, bone marrow was hypercellular with marked basophils. The immunophenotype showed abnormal expression of CD7, which is suggestive of basophilic maturation. Chromosomal analysis from GTG-banded metaphases revealed Ph positivity, and fluorescence in situ hybridization (FISH) with BCR/ABL dual color, dual fusion probe showed single fusion on the der(22) chromosome and ABL/BCR fusion was deleted on the der(9) chromosome. The deletion (ABL/BCR) on der(9) may be associated with basophilia which may be also indicative of the transformation of CML to acute myeloid leukemia. FAU - Vaidya, Shantashri AU - Vaidya S AD - Department of Cytogenetics, National Institute of Immunohaematology (ICMR), K.E.M. Hospital Campus, Parel, Mumbai, India. FAU - Madkaikar, Manisha AU - Madkaikar M FAU - Ghosh, Kanjaksha AU - Ghosh K FAU - Vundinti, Babu Rao AU - Vundinti BR LA - eng PT - Case Reports PL - India TA - Indian J Hum Genet JT - Indian journal of human genetics JID - 101223637 PMC - PMC3214311 OTO - NOTNLM OT - BCR/ABL deletions OT - Basophilia OT - chronic myeloid leukemia COIS- Conflict of Interest: None declared. EDAT- 2011/11/18 06:00 MHDA- 2011/11/18 06:01 PMCR- 2011/05/01 CRDT- 2011/11/18 06:00 PHST- 2011/11/18 06:00 [entrez] PHST- 2011/11/18 06:00 [pubmed] PHST- 2011/11/18 06:01 [medline] PHST- 2011/05/01 00:00 [pmc-release] AID - IJHG-17-100 [pii] AID - 10.4103/0971-6866.86198 [doi] PST - ppublish SO - Indian J Hum Genet. 2011 May;17(2):100-3. doi: 10.4103/0971-6866.86198.