Line 3:1·"Associations" is under the wrong parent heading (found under "Pathology").
Oxford Comma
suggestion
"Ethmocephaly refers to a rare type of midline cranio-facial anomaly that is characterised by the presence of extreme hypotelorism, arhinia and a midline proboscis."
Line 1:148·Use the Oxford comma in 'hypotelorism, arhinia and a'.