Dermatology

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Two-Toned Toes

They’re purple, they’re blue—they’re every hue! Can you diagnose these colorful toes?

MD IQ

DermaDiagnosis

Could This Lesion Be Deadly?

For years, this 24-year-old woman has had a bluish black lesion on her upper arm. It’s asymptomatic and, aside from growing a bit, has remained...

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Four Fattened Phalanges

Looks like these "little piggies" aren't so little anymore. Can you distinguish one abnormal growth from another on these four digits?

DermaDiagnosis

Can You Treat These Feet?

Two years ago, dark spots appeared on this 17-year-old girl's foot. Since then, they've grown and darkened. Your diagnosis is the key to...

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