MS-2469

A 2-year-old girl is brought to a pediatrician by her mother due to a persistent runny nose and cough for the past six months. Despite being treated with antibiotics for an upper respiratory tract infection, the symptoms have not improved. During the examination, the pediatrician observes that the girl has frontal bossing, a flattened nasal bridge, and a protruding tongue. The child’s growth is also below average, but there is no corneal clouding. Further investigation reveals low levels of iduronate sulfatase enzyme activity, confirming the diagnosis. The pediatrician informs the mother that this is a genetically inherited condition and that treatment will involve replacing the defective enzyme. What is the correct name of the condition that this girl is suffering from?