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Janice Dickinson was rushed way from the Costa Rican set of I'm a Celebrity...Get Me Out of Here! with a medical emergency, a production source tells

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"She is not in the hospital," the source says. "It's fair to say she was taken by ambulance this weekend from camp to an on-site medical facility for treatment for an undisclosed condition."

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Details will be revealed on tonight's episode. The former model has complained of hunger and bronchitis on the NBC show.

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Dickinson isn't the first cast member to require medical treatment.

Heidi Pratt was hospitalized and treated for a gastric ulcer before leaving the show.