II. ANATOMY OF THE NOSE

Skillful, experienced rhinoplasty surgeons seek to understand the underlying anatomic causes of the various problems creating an undesired nasal appearance. Understanding the anatomic cause provides a guide to the correct correction approaches.

The anatomy is the underlying reason that a nose looks as it does. Accurate assessment of the patient's anatomy, whether for a first-time rhi­noplasty or for a revision rhinoplasty, allows the surgeon to develop a rational and realistic surgical plan. Recognizing variations in the anatomy is criti­cal to guide the surgeon to the correct approach for a particular patient.

A simplified diagrammatic overview of nasal anatomy is presented here (Figs 1-8). Figures 1-4 show the nose from four standard viewpoints; impor‑tant surface landmarks are marked. Figures 5-7 show the internal anatomy, beneath the skin. The diagrams show the surface anatomy and the structural (i.e., beneath the surface) anatomy of the nose.

FIGURE 1. Frontal. 1: glabella, 2: nasion, 3: tip-defining points, 4: alar-sidewall, 5: supra-alar crease, 6: philtrum.

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