title: Coccygeal ("tail") projection with cartilage content.
mesh_terms: D002356:Cartilage / Q000473:pathology; D002648:Child; D003050:Coccyx / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy