COACH syndrome is categorized as a Jobert syndrome related disorder (JSRD). Joubert syndrome affects approximately 1 in 80,000 to 1 in 100,000 live births, meaning it is a rare disease, while COACH syndrome is even more rare, with only 43 cases being reported from its discovery until 2010.[1] It is estimated to occur in less than one in one million people.[1] Due to this rarity, the prognosis of the disease is dealt with case- by- case.