(REUTERS) Venezuelan President Hugo Chavez wept and asked God to spare his life during a pre-Easter Mass after returning from his latest session of cancer treatment in Cuba.

Very little is known about the 57-year-old socialist leader’s condition, including even what type of cancer he has. Chavez has undergone three operations in less than a year, and received two sessions of radiation treatment.

He says the latest surgery was successful, that he is recovering well and will be fit to win a new six-year term at an election in October. Yet big questions remain about his future, and on Thursday the strain appeared to show.

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