Eric Dane, an actor best known for playing Dr. Mark Sloan, aka "McSteamy," on "Grey's Anatomy," discussed his health challenges after being diagnosed with ALS.

Eric Dane is opening up about his ALS diagnosis, two months after he publicly shared his health news with the world. The “Grey’s Anatomy” star, who is 52, said in a new interview with Diane Sawyer on “Good Morning America” that he originally dismissed his initial symptoms.

Eric Dane, the “Euphoria” and “Grey’s Anatomy” star, talked emotionally about what it's been like since being diagnosed with ALS.