ANDRE LABBE, ISM / SCIENCE PHOTO LIBRARY ANDRE LABBE, ISM / SCIENCE PHOTO LIBRARY
Acanthosis nigricans. Close-up of skin tags and darkened skin in a 14-year-old girl's right armpit in a case of acanthosis nigricans. This condition is a form of hyperpigmentation of the skin, usually in the armpits and other body folds. It is associated with insulin resistance and neoplastic malignancies.
Model release not required. Property release not required.