Anatomy: name of the crease between leg and groin - Medical Sciences Stack Exchange

What is the name of the crease/fold/sulcus between the top of the leg and the groin? Here's an image

In a patient with left groin crease and left inner-thigh discomfort, a

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Anatomy of Groin

Thigh deep hi-res stock photography and images - Page 7 - Alamy

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Thigh deep hi-res stock photography and images - Page 7 - Alamy

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Anatomy of Groin