PMID- 18474299 OWN - NLM STAT- MEDLINE DCOM- 20080624 LR - 20080513 IS - 1873-4456 (Electronic) IS - 0165-4608 (Linking) VI - 183 IP - 1 DP - 2008 May TI - Cytogenetic and molecular cytogenetic findings in lipoblastoma. PG - 60-3 LID - 10.1016/j.cancergencyto.2008.01.017 [doi] AB - Lipoblastoma is a rare benign tumor that arises from embryonic adipose tissue and usually occurs in young children. Here, we present a review of available cytogenetic data and the karyotypes of 10 new cases of lipoblastoma, of which 7 could be studied further by fluorescence in situ hybridization (FISH) with regard to the involvement of the PLAG1 gene. All seven tumors with clonal aberrations harbored breakpoints in 8q11 approximately q13, in agreement with literature data. Including previously published cases, 33/40 (82%) lipoblastomas had rearrangement of the 8q11 approximately q13 region. These rearrangements target the PLAG1 gene, which becomes upregulated through promoter swapping. FISH revealed that five of seven cases in our series had a rearrangement of the PLAG1 gene. Occasionally, there can be difficulties in distinguishing a lipoblastoma from a conventional lipoma or a myxoid liposarcoma. As 8q11 approximately q13 rearrangements have been reported in only 3% of conventional lipomas and never in myxoid liposarcoma, cytogenetic analysis or FISH for the PLAG1 gene can provide useful differential diagnostic information. FAU - Bartuma, Hammurabi AU - Bartuma H AD - Department of Clinical Genetics, Lund University Hospital, SE-221 85 Lund, Sweden. FAU - Domanski, Henryk A AU - Domanski HA FAU - Von Steyern, Fredrik Vult AU - Von Steyern FV FAU - Kullendorff, Carl-Magnus AU - Kullendorff CM FAU - Mandahl, Nils AU - Mandahl N FAU - Mertens, Fredrik AU - Mertens F LA - eng 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 RN - 0 (DNA-Binding Proteins) RN - 0 (PLAG1 protein, human) SB - IM MH - Abdominal Wall/pathology MH - Buttocks/pathology MH - Child, Preschool MH - *Chromosome Aberrations MH - Chromosomes, Human, Pair 1 MH - Chromosomes, Human, Pair 11 MH - Chromosomes, Human, Pair 5 MH - Chromosomes, Human, Pair 8 MH - DNA-Binding Proteins/genetics MH - Female MH - Humans MH - Infant MH - Karyotyping MH - Lipoma/*genetics MH - Male MH - *Molecular Diagnostic Techniques MH - Thigh/pathology MH - Thoracic Wall/pathology EDAT- 2008/05/14 09:00 MHDA- 2008/06/25 09:00 CRDT- 2008/05/14 09:00 PHST- 2007/11/16 00:00 [received] PHST- 2008/01/21 00:00 [revised] PHST- 2008/01/28 00:00 [accepted] PHST- 2008/05/14 09:00 [pubmed] PHST- 2008/06/25 09:00 [medline] PHST- 2008/05/14 09:00 [entrez] AID - S0165-4608(08)00093-9 [pii] AID - 10.1016/j.cancergencyto.2008.01.017 [doi] PST - ppublish SO - Cancer Genet Cytogenet. 2008 May;183(1):60-3. doi: 10.1016/j.cancergencyto.2008.01.017.