has part has part characteristic of inheres in has modifier Abnormal antihelix morphology Absent antihelix 2011-12-15T07:09:03Z HP:0011234 This finding is common in a protruding and cupped ear, where the superior and inferior parts of the antihelix are often absent. This is distinct from partial absence of the antihelix as may occur in, for example, underdeveloped inferior crus of the antihelix. UMLS:C4023448 No discernible ridge between concha and triangular fossa and helix. abnormal absent antihelix