Topology of the lateral nasal cartilages: The anatomical relationship of the lateral nasal to the greater alar cartilage, lateral crus

Abstract

Abstract This investigation was undertaken to help fulfill the practical need of the rhinologic surgeon for a more accurate anatomical knowledge of the cartilages of the nasal tip. Four adult caucasian noses aged 62–88 years were embedded en bloc and serially sectioned. The nasal cartilages of one were reconstructed in wax. Anatomical relationships of the lateral nasal cartilage to the lateral crus of the greater alar cartilage were compared. The findings were compared with descriptions found in the literature. The lateral nasal cartilage curls to varying degrees laterally and upward on its inferior margin where it underrides the lateral crus of the greater alar cartilage. The curl is greater anteriorly and diminishes postero‐laterally to the point where the cartilage lies flat. The lateral crus of the greater alar cartilage also may curl medially and downwards on its superior margin where it overrides the lateral nasal cartilage. Sesamoid cartilages are present in all specimens. These findings, although known to many rhinologic surgeons, are not clearly established in the literature.