Hyperpigmentation on Sun Exposed Skin
A 50-year-old woman presents with darkness of her skin that started several weeks ago. What is your diagnosis?
Diagnosis & Disease Information
Bump on Knee
A 61-year-old woman presents with a 7-month history of a bump on the front of her left knee. What is your diagnosis?
Recurring Rash on Back
A 65-year-old man presents with a recurring rash on his back. What is your diagnosis?
Yellow Papules on Neck and Arms
A young woman presents with yellow papules on her neck and arms that started around puberty. What is your diagnosis?
Skin Thickening Around Fingers
A 47-year-old otherwise healthy woman presents with thickening of her skin over several months. Can you make the diagnosis?
Depigmented Macules and Patches on Lateral Back
A 15-year-old Black man presents with a 1-year history of light spots on his back that has grown slowly, with several new lesions appearing near the first one. What is your diagnosis?
Rash on Face, Trunk, and Extremities
A 60-year-old Black woman presents with a 30-day history of a nonitchy rash on her face, trunk, and extremities. What is your diagnosis?
Growing Patch on Side of Nose
A 64-year-old man with a history of numerous nonmelanoma skin cancers presents with a lesion on the left side of his nose that was first noticed about 6 months ago and is slowly growing. Can you make the diagnosis?
Red Patches Over Face, Chest, and Upper Limbs
Prevalence estimates for SLE vary between 20 and 150 cases per 100,000 individuals and have been increasing with improved recognition of the disease.
Itchy Rash After COVID-19
A 54-year-old woman with a history of depression presents with a 1-year history of a rash that developed all over her body soon after a hospitalization for COVID-19. Can you make the diagnosis?
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