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Case Report |
Address correspondence to Kyungja Han, M.D., Department of Clinical Pathology, College of Medicine, The Catholic University of Korea, 62 Youido-dong, Youngdeungpo-gu, St Marys Hospital, Seoul, 150-713, Korea; tel 82 2 3779 1310; fax 82 2 783 6648; e-mail hankja{at}catholic.ac.kr.
Abstract
We describe an unusual case of acute promyelocytic leukemia with +der(17)t(15;17) as the additional cytogenetic abnormality and with t(15;17) defined by fluorescence in situ hybridization (FISH) using a PML/RARA dual color, dual fusion translocation probe. By performing a step-by-step, complementary approach to evaluate unusual chromosomal abnormalities, we detected RARA/PML fusion on a marker chromosome similar to chromosome 17.
Keywords: acute promyelocytic leukemia, PML/RARA, RARA/PML, fluorescence in situ hybridization
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