Absent cupid's bow 2010-06-26T02:01:31Z Missing cupid's bow Lack of paramedian peaks and median notch of the upper lip vermilion. Absent cupid's bow HP:0010800 This bow is often absent in a Thin vermilion of the upper lip, but that should be assessed separately. This finding is commonly associated with Smooth philtrum, but that should be coded separately. UMLS:C2053435 Agenesis of cupid's bow Failure of development of cupid's bow Lack of cupid's bow Aplasia of cupid's bow Abnormality of upper lip vermillion