Sultan Kösen of Turkey is the world's tallest living male.
He is 251 cm (8 feet 2.82 in) tall.
Kösen's growth was caused by the disorders gigantism and acromegaly, which were induced by a pituitary tumour.
He walks with crutches due to his illness.
Guinness World Records confirmed Kösen as the highest living man in 2009.
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