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A Long Brown Line Under A Young Woman's Fingernail
What is in your differential diagnosis for a thin brown line of parallel bands, regular in width that span nail fold to free nail edge?
The vertical brown line under the index fingernail of a African-American teen girl has not been cause for alarm over the 4-5 years she has been a patient at this clinic. The teen's sports participation physical examination with a resident in the room offers a teaching opportunity this physician can't pass up. What does this line look like to you? Is it ominous or otherwise benign? What's in your differential -- and what's your diagnosis?
Atopic Dermatitis: The Pipeline and Clinical Approaches That Could Transform the Standard of Care
September 24th 2025Patient Care tapped the rich trove of research and expert perspectives from the Revolutionizing Atopic Dermatitis 2025 conference to create a snapshot of the AD care of the future.
