Abstract
A female American saddlebred horse was presented for surgical correction of a possible pseudohermaphrodite condition. The horse had abnormal external genitalia and exhibited stallion-like behaviour. No evidence of uterine or ovarian tissue was identified on laparoscopic examination, but hypoplastic testicular-like tissue was removed, although this was found to contain no spermatogonia upon histopathological examination. A karyotype was performed and showed the normal chromosomal complement for a female horse (64,XX). Polymerase chain reaction to detect the SRY gene was negative in peripheral blood as well as the testicular-like tissue. This case represents the first report of an SRY negative XX-male sex reversal intersex phenotype, which is a potentially inherited condition, in an American saddlebred horse.
Original language | English (US) |
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Pages (from-to) | 437-439 |
Number of pages | 3 |
Journal | Veterinary Journal |
Volume | 173 |
Issue number | 2 |
DOIs | |
State | Published - Mar 2007 |
Keywords
- Equine
- Karyotype
- Pseudohermaphrodite
- SRY gene
- XX-sex reversal
ASJC Scopus subject areas
- Animal Science and Zoology
- veterinary(all)