PMID- 12503111 OWN - NLM STAT- MEDLINE DCOM- 20030430 LR - 20200930 IS - 1552-4825 (Print) IS - 1552-4825 (Linking) VI - 116A IP - 3 DP - 2003 Jan 30 TI - True hermaphroditism with ambiguous genitalia due to a complicated mosaic karyotype: clinical features, cytogenetic findings, and literature review. PG - 300-3 AB - Abnormal recombination between the X and Y chromosomes during meiosis, occurring outside the pseudoautosomal region, can result in translocation of the SRY gene from the Y to the X chromosome, and consequently in abnormal sexual differentiation, such as the development of 46,XX males or true hermaphroditism. In this report we present clinical, cytogenetic, and molecular-cytogenetic data of a patient with ambiguous genitalia and true hermaphroditism, who had a unique mosaic karyotype, comprising three different cell lines: 46,XX(SRY+), 45,X(SRY+), and 45,X. The mosaic karyotype of our patient probably represents two different events: abnormal recombination between the X and Y chromosomes during paternal meiosis, and postzygotic loss of one of the X chromosomes. Replication studies demonstrated that in 80% of the XX cells, the SRY sequence was located on the active X chromosome. This finding suggests nonrandom X inactivation and, together with the presence of the SRY gene, explains the male phenotype of our patient. On the other hand, the presence of the 45,X cell line may have contributed to genital ambiguity. We conclude that fluorescence in situ hybridization (FISH) analysis with SRY probes is highly recommended and allows accurate diagnosis and optimal management in cases of 46,XX hermaphroditism and ambiguous genitalia. CI - Copyright 2002 Wiley-Liss, Inc. FAU - Modan-Moses, Dalit AU - Modan-Moses D AD - Pediatric Endocrinology Service, Chaim Sheba Medical Center, Tel-Hashomer, Israel. dmodan@sheba.health.gov.il FAU - Litmanovitch, Talia AU - Litmanovitch T FAU - Rienstein, Shlomit AU - Rienstein S FAU - Meyerovitch, Joseph AU - Meyerovitch J FAU - Goldman, Boleslaw AU - Goldman B FAU - Aviram-Goldring, Ayala AU - Aviram-Goldring A LA - eng PT - Case Reports PT - Journal Article PT - Review PL - United States TA - Am J Med Genet A JT - American journal of medical genetics. Part A JID - 101235741 SB - IM MH - Chromosomes, Human, X/genetics MH - Disorders of Sex Development/*genetics MH - Genitalia/*abnormalities MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Male MH - Mosaicism/*genetics MH - *Sex Chromosome Aberrations MH - Sex Determination Analysis RF - 16 EDAT- 2002/12/28 04:00 MHDA- 2003/05/06 05:00 CRDT- 2002/12/28 04:00 PHST- 2002/12/28 04:00 [pubmed] PHST- 2003/05/06 05:00 [medline] PHST- 2002/12/28 04:00 [entrez] AID - 10.1002/ajmg.a.10869 [doi] PST - ppublish SO - Am J Med Genet A. 2003 Jan 30;116A(3):300-3. doi: 10.1002/ajmg.a.10869.