Also known as: AN., AN...
AN stands for various terms. Discover the full forms, meanings, and possible interpretations of AN across different fields and industries.
Acanthosis nigricans is a brown to black, poorly defined, velvety hyperpigmentation of the skin. It is usually found in body folds, such as the posterior and lateral folds of the neck, the armpits, groin, navel, forehead, and other areas.
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