FAU Advanced Health Assessment Practice Test

In which areas of the body is Acanthosis Nigricans most commonly found?

1. Forearms and legs

2. Face and neck

3. Skin folds, especially posterior neck

4. Hands and feet

The correct answer is: Skin folds, especially posterior neck

Acanthosis Nigricans is a skin condition characterized by dark, velvety patches of skin, typically indicative of underlying issues such as insulin resistance or endocrine disorders. It most often appears in areas of the body where there are skin folds, as these regions are more prone to friction and irritation. The posterior neck is a particularly common site for Acanthosis Nigricans because it often experiences friction from clothing or the constant movement of the head. Other areas where this condition may frequently appear include the armpits, groin, and other flexural areas such as the elbows and knees. The presence of Acanthosis Nigricans in these regions can serve as an important clinical indicator for practitioners to consider potential metabolic disorders, particularly in overweight or obese individuals. While it is true that other areas noted in the choices may occasionally develop Acanthosis Nigricans, they are not as commonly associated with the condition as the skin folds, especially the posterior neck. Recognizing the typical locations helps healthcare providers in diagnosing potential systemic conditions associated with this skin change.