Marfan syndrome(MFS)is an autosomal dominant disorder that is prone to fibrodysplasia,lens dislocation and rapid height growth,which needs to be distinguished from gigantism.This article reports a 14-year-old patient with MFS who had a typical binocular lens subluxation in both eyes,with visual impairment and rapid height growth.MRI with contrast to the pituitary suggested a pituitary microadenoma,but growth hor-mone and insulin-like growth factor 1 were in the normal range,thus excluding gigantism or acromegaly.Non-functional pituitary adenoma was considered.MFS patients need long-term follow-up and multidisciplinary col-laboration,and attention should be paid to cardiovascular system monitoring and genetic testing,which can be helpful for the diagnosis and treatment of patients and risk prevention and control.
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