الفهرس 
Anatomy of the ovaryOnly 14 pages are availabe for public view
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Abstract
Polycystic ovary syndrome (PCOS) is a heterogeneous
disorder which has eluded definitive description because of the
varied combination of clinical, biochemical and ultrasonographic
features which may occur. The commonest association is of
hyperandrogenism and chronic anovulation; recognition of
characteristic ovarian ultrasound features together with clinical
symptoms of oligomenorrhoea, hyperandrogenism, infertility or
obesity is presently the preferred approach to diagnosis (Trivax and
Azziz, 2007).
Polycystic ovary disease is one of the most common endocrine
disorders, although its etiology remains unknown. At a joint
consensus meeting of the American Society of Reproductive
medicine and the European Society of Human Reproduction and
Embryology held in Rotterdam, in May 2003, a refined definition of
the polycystic ovary disease was agreed. Namely the presence of two
out of the following three criteria: (i) oligo- and/or anovulation; (ii)
hyper-androginism (clinical and/or biochemical); and (iii) polycystic
ovaries, with the exclusion of other etiologies. The morphology of
the polycystic ovary has been redefined as an ovary with 12 or more
follicles measuring 2-9 mm in diameter and/or increased ovarian
volume more than 10 ml (Balen et al., 2005).
Transvaginal color and pulsed Doppler ultrasound in
combination with B-mode imaging is used as a non-invasive method
to assess blood flow in both obstetrics and gynecology this technique
has been used to study the hemodynamic changes in the uterine
and/or ovarian arteries during the menstrual cycle in women with
normal ovaries. (Lakhani et al., 2002 ). There has been much interest
regarding the potential role of transvaginal color and pulsed Doppler
ultrasound in assessing the ovarian and uterine blood flow of PCOS (Dolz
et al., 1999). Most investigators would agree that the blood flow and the
vascular pattern of an organ are directly related to the organ’s
morphology and function (Collins et al., 1991).