This open-access atlas provides detailed descriptions and high-quality images of a wide range of skin conditions on patients with darker skin tones. It is a vital tool designed to help medical students and healthcare professionals to recognize the distinct ways many skin conditions present on diverse skin tones.
By studying these clinical images and descriptions, learners at all levels can enhance their diagnostic skills and better identify subtle variations in skin lesions and rashes. This essential guide supports clinical education and helps bridge the gap between theoretical knowledge and real-world practice, with the goal of ultimately improving patient care.
This site may be used for educational and learning purposes only. It is not intended to substitute for the medical decision-making of a healthcare provider. Consult your own healthcare provider if you have any personal health concerns or questions.
Acute Urticaria
Urticaria presents as transient, annular, raised, erythematous plaques with superficial dermal swelling (also known as wheals) that appear suddenly over a short period of time in response to release of histamine and other vasoactive substances. Urticaria can rarely present with angioedema (lip/facial swelling, difficulty breathing, throat closing). Urticaria can be triggered by allergic or nonallergic mechanisms, and is classified as acute when the episode or recurring episodes last less than 6 weeks.