Sinonasal Embryology and Anatomy
Module Summary
Understanding the embryology of the sinonasal pathway is crucial in appreciating its anatomy and pathophysiology. Congenital anomalies occur because of errors during embryogenesis. Depending on the affected period during prenatal development, different structures and malformations may be observed. The abnormalities may range from full absence of development to a mild malformation, easily reparable. Given the complexity of the sinonasal procedures, it is imperative to truly understand the anatomy prior to operating.
Module Learning Objectives
- Describe the basic embryology of the sinonasal tract.
- Recognize the most common embryologic abnormalities of the sinonasal tract.
- Explain the anatomic relationships of the sinonasal tract in the setting of the head and neck
- Cite the origins of anatomic variants of the nasal system
- Describe the variants of the frontal sinus anatomy
Resources
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- Annual Meeting Webcasts (AMW):
- ENT Exam Series (Xs):
- ENT for the PA-C:
- Sinus and Nasal Anatomy