Nummular dermatitis, also known as discoid eczema, is a chronic inflammatory skin condition characterized by coin-shaped, pruritic, erythematous plaques with scaling. The etiology remains unclear, but it can be triggered by various factors such as dry skin, stress, or allergens. This clinical vignette on nummular dermatitis aims to guide residents in recognizing and diagnosing this challenging condition. Through this case, users will learn about the clinical features of nummular dermatitis, its differential diagnosis, and appropriate diagnostic and management strategies.

This vignette is an excellent resource for residents preparing for OSCE-style examinations and can also be used as a self-directed learning tool for healthcare professionals seeking to enhance their knowledge and skills in managing nummular dermatitis.

We invite you to explore the associated learning module and quizzes to reinforce your knowledge and test your understanding of this important topic.

1. Bolognia, J., Schaffer, J. V., & Cerroni, L. (2018). Dermatology (4th ed.). Philadelphia, PA: Elsevier.