PMID- 10942798 OWN - NLM STAT- MEDLINE DCOM- 20000908 LR - 20190816 IS - 0165-4608 (Print) IS - 0165-4608 (Linking) VI - 120 IP - 2 DP - 2000 Jul 15 TI - Fluorescence in situ hybridization detection of two telomeres on the short arm of a derived chromosome 16 in an infant with thrombocytopenia. PG - 99-104 AB - We report a case of severe thrombocytopenia with an abnormal bone marrow karyotype described by G-banding analysis as t(16;21)(p?13;q11). Using fluorescence in situ hybridization (FISH) analysis with whole chromosome paints, the chromosome rearrangement was shown to be more complex, with the additional cryptic involvement of the long arm of chromosome 3. The chromosome rearrangement involved the breakpoints 3q26, 16p13.3, and 21q11; this rearrangement has not been previously described. The size of genomic material translocated from the chromosome 16 homologue was too small to be detected by chromosome paint. A 16p-specific telomeric probe was hybridized to locate the translocated 16p material. The 16p telomeric unique sequence DNA was retained on the der(16) chromosome, indicating a more distal breakpoint. This study demonstrates that telomeric translocations can occur that would be undetected by telomeric-specific FISH probes. FAU - Gribble, S AU - Gribble S AD - Department of Haematology, University of Cambridge, Cambridge, United Kingdom. FAU - Andrews, K AU - Andrews K FAU - Williams, D AU - Williams D FAU - Tillett, A AU - Tillett A FAU - Bloxham, D AU - Bloxham D FAU - Proffit, J AU - Proffit J FAU - Hackbarth, M AU - Hackbarth M FAU - Grace, C AU - Grace C FAU - Green, A AU - Green A FAU - Nacheva, E AU - Nacheva E LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 SB - IM MH - Bone Marrow Cells/metabolism/pathology MH - Chromosome Banding MH - Chromosome Painting MH - Chromosomes, Human, Pair 16/*genetics MH - Chromosomes, Human, Pair 21/*genetics MH - Chromosomes, Human, Pair 3/*genetics MH - Humans MH - In Situ Hybridization, Fluorescence MH - Infant MH - Karyotyping MH - Male MH - Telomere/*genetics MH - Thrombocytopenia/genetics/*pathology MH - Translocation, Genetic EDAT- 2000/08/16 11:00 MHDA- 2000/09/19 11:01 CRDT- 2000/08/16 11:00 PHST- 2000/08/16 11:00 [pubmed] PHST- 2000/09/19 11:01 [medline] PHST- 2000/08/16 11:00 [entrez] AID - S0165-4608(99)00259-9 [pii] AID - 10.1016/s0165-4608(99)00259-9 [doi] PST - ppublish SO - Cancer Genet Cytogenet. 2000 Jul 15;120(2):99-104. doi: 10.1016/s0165-4608(99)00259-9.