As adrenaline-fueled races have exploded in popularity in a recent years, creating an industry with tens of millions of dollars in revenue, some racers have paid a high price.

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  Tough Mudder, Warrior Dash push racers to extremes [Pictures]

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  Injuries and deaths mount at extreme races across the county [Interactive Timeline]

Hundreds of residents have been relocated and dozens of homes cleared from Baltimore's Middle East neighborhood in recent years. Now the area just north of Johns Hopkins Hospital may be losing something more: its name.

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  Middle East neighborhood [Map]