Idiopathic acanthosis nigricans
For patients and clinicians
Contact Dr. Keith Choate
If you have generalized idiopathic acanthosis nigricans—or treat a patient who does—contact Dr. Keith Choate, Chair of Dermatology and Professor of Genetics and Pathology at Yale School of Medicine.
Dr. Choate is a physician-scientist focused on the genetics of rare skin disease and senior author of the 2026 JAMA Dermatology report on de novo germline EGFR variants and generalized acanthosis nigricans.
Call Dr. Choate's office: +1 203-785-4092Published as: Poetzscher IK, Klebanov N, Das S. Widespread skin-thickening and hyperpigmentation. Cleveland Clinic Journal of Medicine. 2022;89(9):485–487.
CIMOS™ was not involved in this case and did not contribute to it. It was written and published independently by its authors. CIMOS™’s founder is the patient described in it, not an author.