I hope that this helps:
Types of PCOS
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:
Traditional PCOS -- anovulatory, increased androgens, no insulin resistance
Endocrine Syndrome X -- anovulatory, increased androgens, insulin resistance or type 2 diabetes
Non-Traditional PCOS --anovulatory, normal androgens, obese, insulin resistant or type 2 diabetes
Non-Traditional PCOS -- ovulatory, increased androgens, mild insulin resistance
Idiopathic Hirsutism -- ovulatory, increased androgens, no insulin resistance
High Insulin levels due to insulin resistance may be a primary cause. The insulin levels cause the increased androgen levels. In some cases, the insulin resistance is a genetic abnormality (12) . Some instances of polycystic ovarian syndrome associated with male pattern baldness are thought to be due to an autosomal dominant genetic defect (13) but it is important to note that this does not explain all cases (14). Since this is a syndrome that likely includes different categories of diseases, it is also likely that some instances are caused by genetic abnormalities while other instances are caused by environmental or as yet unknown conditions.
SOURCE:
http://www.wdxcyber.com/dxinf001.htm
I found this with info about Chromosome 19
Women With PCOS, Siblings Have Same Gene Defect
CHICAGO— Siblings of women with polycystic ovary syndrome (PCOS) have metabolic and hormonal abnormalities that are linked to the same gene defect that causes PCOS, a disorder associated with irregular periods, infertility, excessive body hair, and increased risk for diabetes.
These new findings came from the $6 million National Institutes of Health–funded National Centers Program for Infertility Research. The study was led by Northwestern University researcher Andrea Dunaif, MD, Charles F. Kettering Professor, chief of endocrinology and metabolism, and professor of medicine at Northwestern University's Feinberg School of Medicine, and collaborators at Pennsylvania State University and the University of Pennsylvania.
Dr. Dunaif and co-investigators believe the location of the PCOS gene mutation is on chromosome 19, near the insulin receptor gene, which plays a key role in allowing insulin to enter cells and metabolize sugar. This marker, called allele 8 of D19S884, was associated with risk factors for diabetes in PCOS women and their brothers.
In recently published studies, approximately 50 percent of the sisters of PCOS women had elevated androgen (so-called "male hormones" that are present in both men and women) levels while the other half of the sisters were unaffected. Of the high-androgen group, half (or 25 percent of the sisters) had PCOS and insulin resistance, while the other 25 percent were insulin resistant but showed no PCOS symptoms and had normal menstrual periods.
The PCOS sisters and those with high androgen levels were more obese than unaffected sisters.
The PCOS brothers also had significantly elevated levels of the androgen DHEAS, which correlated with the high androgen levels in their sisters with PCOS.
These results strongly suggest that the same gene defect is responsible for PCOS and the hormonal abnormalities and other symptoms found in the siblings of PCOS-affected women, but further studies are required, Dr. Dunaif said.
PCOS is a complex disorder that affects nearly 10 percent of premenopausal women and is associated with elevated levels of androgens, as well as irregular menstrual periods and reproductive problems. Other symptoms of PCOS include obesity, excess hair on the face and body, male-pattern baldness, and severe, chronic acne.
Many women with PCOS are insulin-resistant, a condition that raises the level of insulin circulating in the body and is a precursor to Type 2 diabetes. In fact, women with PCOS have seven times the risk of other women for developing adult-onset diabetes, which in turn greatly increases their chance of having cardiovascular disease, stroke, and kidney problems. Dr. Dunaif's research also has shown that PCOS is an important risk factor for the adult form of diabetes in teenaged girls.
Dr. Dunaif's co-investigator on the NIH grant is Richard L. Legro, MD, Pennsylvania State University. Also collaborating on the PCOS gene research are Margrit Urbanek and Ralph Kazer, MD, professor of obstetrics and gynecology and chief of reproductive endocrinology, The Feinberg School of Medicine, Northwestern University; and Richard S. Spielman and Jerome F. Straus III, University of Pennsylvania. Kazer also is co-director of the PCOS Center at Northwestern.
The PCOS Center is recruiting women with PCOS and their families to participate in this nationwide gene study. To qualify, women with suspected PCOS should be between 18 and 40, have six or fewer menstrual periods a year, and not be taking oral contraceptives. Family members may be asked about their willingness to participate in the study. All study-related tests will be performed free of charge. The study consists of four visits over approximately six months. For information, call 1-800-847-6060 or e-mail
pcos@northwestern.edu .
http://www.medschool.northwestern.ed...gust/pcos.html 
I can't find it!!! 
