has part has part characteristic of part of inheres in part of has modifier Abnormal pinna morphology Abnormal helix morphology 2011-03-06T04:41:34Z Abnormal helices Abnormality of the helix Helix abnormal HP:0000380 HP:0011039 An abnormality of the helix. The helix is the outer rim of the ear that extends from the insertion of the ear on the scalp (root) to the termination of the cartilage at the earlobe. UMLS:C1856660 morphology abnormal helix of outer ear