Chromosome 9p deletion syndrome and sex reversal: novel findings and redefinition of the critically deleted regions

Roberta Onesimo, Daniela Orteschi, Maria Scalzone, Aurora Natalia Rossodivita, Lorenzo Nanni, Gian Franco Zannoni, Giacinto Marrocco, Domenica Immacolata Battaglia, Carlo Fundarò, Giovanni Neri

Risultato della ricerca: Contributo in rivistaArticolo in rivista


Deletions of the short arm of chromosome 9 are associated with two distinct clinical entities. Small telomeric 9p24.3 deletions cause genital anomalies in male subjects, ranging from disorder of gonadal sex to genital differentiation anomalies, while large terminal or interstitial deletions result in 9p-malformation syndrome phenotype. The critical region for non-syndromic 46,XY sex reversal was assigned to a 1 Mb interval of chromosome 9p, extending from the telomere to the DMRT genes cluster. The 9p-syndrome was assigned to bands 9p22.3p24.1, but a phenotypic map has not been established for this condition, probably because of the lack of detailed molecular and/or phenotypic characterization, as well as frequent involvement of additional chromosome rearrangements. Here, we describe a unique patient with a small isolated 9p terminal deletion, characterized by array-CGH and FISH, who shows a complex phenotype with multiple physical anomalies, resembling the 9p-syndrome, disorder of sex development with gonadoblastoma, congenital heart defect and epilepsy. The observed deletion includes the 46,XY sex-reversal critical region, excluding the region so far associated with the 9p-syndrome. Genotype-phenotype correlations are tentatively established comparing our patient to seven other previously reported males with isolated terminal 9p deletions, finely defined at a molecular level. Our observations expand the 9p deletion clinical spectrum, and add significantly to the definition of a 9p-syndrome critical region.
Lingua originaleEnglish
pagine (da-a)2266-2271
Numero di pagine6
Stato di pubblicazionePubblicato - 2012


  • 46, XX Testicular Disorders of Sex Development
  • Chromosome Deletion
  • Chromosomes, Human, Pair 9
  • Humans


Entra nei temi di ricerca di 'Chromosome 9p deletion syndrome and sex reversal: novel findings and redefinition of the critically deleted regions'. Insieme formano una fingerprint unica.

Cita questo