Article

Melanoma manifesting as LM with a prominent Hutchinson sign in a Hispanic man, with variable shades of brown covering more than 50% of the nail width.

Longitudinal Melanonychia

Author:
Tristi M. Edwards, MBBS, MSc
Richard P. Usatine, MD
Candrice R. Heath, MD

A patient presented with variable shades of brown covering more than 50% of the nail width. What's the condition and what are the key clinical...

Article

A Black woman with ACD on the neck

Allergic contact dermatitis

Author:
Tristi M. Edwards, MBBS, MSc
Richard P. Usatine, MD
Candrice R. Heath, MD

Allergic contact dermatitis (ACD) is an inflammatory condition of the skin caused by an immunologic response to 1 or more identifiable allergens...

Article

Black woman with ACD on the neck

Allergic Contact Dermatitis

Author:
Tristi M. Edwards, MBBS, MSc
Richard P. Usatine, MD
Candrice R. Heath, MD

A Black woman with a rash on the neck that developed after new products were applied to the hair. What’s the condition and what...