Usually the diagnosis includes both anovulation and androgen (testosterone) excess but many related conditions have become lumped together in the literature under the term polycystic ovarian syndrome. Woman with polycystic ovaries on ultrasound do not all have androgen excess, but insulin resistance is manifest in equal frequencies whether or not there are elevated androgens (11). Because of this mixed clinical picture, those conditions all collected under the term polycystic ovarian syndrome in the medical literature may include:
1) traditional PCOS -- anovulatory, increased androgens, no insulin resistance
2) endocrine syndrome X -- anovulatory, increased androgens, insulin resistance or type 2 diabetes
3) non-traditional PCOS --anovulatory, normal androgens, obese, insulin resistant or type 2 diabetes
4) non-traditional PCOS -- ovulatory, increased androgens, mild insulin resistance
5) idiopathic hirsutism -- ovulatory, increased androgens, no insulin resistance
SOURCE:
http://www.wdxcyber.com/dxinf001.htm