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Acanthosis Nigricans in a Patient With Streak Gonads

Jacobo Wortsman, MD; Lois Y. Matsuoka, MD; John Dietrich, MD; Bains Jagdish, MD; James R. Gavin III, MD, PhD; Carolyn B. Coulam, MD; Boris G. Kousseff, MD
Arch Intern Med. 1983;143(4):825-827. doi:10.1001/archinte.1983.00350040215035.
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• Acanthosis nigricans (ACN) is associated with ovarian disorders or abnormalities of carbohydrate metabolism. We saw a 21-year-old woman who had primary amenorrhea and ACN. Results of endocrine studies showed anovulation and low serum estradiol levels with increased gonadotropin concentrations. Laparoscopic examination disclosed bilateral streak gonads; the ovaries were completely replaced by fibrous tissue. Cultures of peripheral lymphocytes, skin fibroblasts, and the right and left ovaries demonstrated normal female karyotype 46XX in all mitoses studied. An autoimmune disorder was excluded by the absence of antithyroid and antiadrenal antibodies. Specific antibodies against ovarian proteins were also absent. A glucose tolerance test demonstrated fasting hyperinsulinemia and exaggerated serum insulin response to the glucose load. The observations in this patient exclude a primary pathogenic role for the ovary in the production of ACN; they also lend further support to a connection between the cutaneous disorder and insulin resistance.

(Arch Intern Med 1983;143:825-827)


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