PMID- 8536230 OWN - NLM STAT- MEDLINE DCOM- 19960208 LR - 20190816 IS - 0165-4608 (Print) IS - 0165-4608 (Linking) VI - 84 IP - 2 DP - 1995 Oct 15 TI - An abnormal clone with monosomy 7 and trisomy 21 in the bone marrow of a child with congenital agranulocytosis (Kostmann disease) treated with granulocyte colony-stimulating factor. Evolution towards myelodysplastic syndrome and acute basophilic leukemia. PG - 99-104 AB - Cytogenetic analysis of bone marrow cells revealed an abnormal clone with monosomy 7 and trisomy 21 in a 12-year-old child with Kostmann disease (KD). The patient presented with anemia, thrombocytopenia, and splenomegaly after 5 years of treatment with granulocyte colony-stimulating factor (G-CSF). The bone marrow morphology was consistent with the diagnosis of myelodysplastic syndrome (MDS). Administration of G-CSF was discontinued at this point. Bone marrow studies 2 and 5 months later showed persistence of both myelodysplasia and the abnormal clone with monosomy 7 and trisomy 21. Monosomy 7 was also confirmed by fluorescence in situ hybridization (FISH). After 2 months of follow-up, the patient presented with acute basophilic leukemia, a very rare variant of acute myeloid leukemia (AML), expressing the same bone marrow chromosome abnormalities as observed earlier. This is a rare case of KD with prolonged survival and a cytogenetically abnormal clone evolving to MDS and acute basophilic leukemia. The significance of monosomy 7 and trisomy 21 in KD treated with G-CSF is discussed. FAU - Shekhter-Levin, S AU - Shekhter-Levin S AD - Department of Human Genetics, University of Pittsburgh, Pennsylvania, USA. FAU - Penchansky, L AU - Penchansky L FAU - Wollman, M R AU - Wollman MR FAU - Sherer, M E AU - Sherer ME FAU - Wald, N AU - Wald N FAU - Gollin, S M AU - Gollin SM LA - eng PT - Case Reports PT - Journal Article PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 RN - 143011-72-7 (Granulocyte Colony-Stimulating Factor) SB - IM MH - Agranulocytosis/*congenital/therapy MH - Child MH - *Chromosomes, Human, Pair 21 MH - *Chromosomes, Human, Pair 7 MH - Down Syndrome/*genetics MH - Granulocyte Colony-Stimulating Factor/*therapeutic use MH - Humans MH - Karyotyping MH - Leukemia, Basophilic, Acute/*genetics MH - Male MH - *Monosomy MH - Myelodysplastic Syndromes/*genetics EDAT- 1995/10/15 00:00 MHDA- 1995/10/15 00:01 CRDT- 1995/10/15 00:00 PHST- 1995/10/15 00:00 [pubmed] PHST- 1995/10/15 00:01 [medline] PHST- 1995/10/15 00:00 [entrez] AID - 016546089500095X [pii] AID - 10.1016/0165-4608(95)00095-x [doi] PST - ppublish SO - Cancer Genet Cytogenet. 1995 Oct 15;84(2):99-104. doi: 10.1016/0165-4608(95)00095-x.