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Ching-Yun Han, MD

Photo Quiz
10/20/2014
Actinic keratosis, also known as solar keratosis, is a premalignant skin lesion that may occasionally progress to invasive squamous cell carcinoma.
Actinic keratosis, also known as solar keratosis, is a premalignant skin lesion that may occasionally progress to invasive squamous cell carcinoma.
Actinic keratosis, also known as...
10/20/2014
Annals of Long-Term Care
Photo Quiz
10/20/2014
What is the cause of this horn-like lesion on an elderly woman's face? 
What is the cause of this horn-like lesion on an elderly woman's face? 
What is the cause of this...
10/20/2014
Annals of Long-Term Care