11+ Preauricular Sinus Images. A preauricular pit—also referred to as a preauricular sinus or fistula—is a small hole present in front of the ear. The formation of the first branchial arch occurs during the fourth week of fetal development.

Pdf The Histologic Relationship Of Preauricular Sinuses To Auricular Cartilage Semantic Scholar
Pdf The Histologic Relationship Of Preauricular Sinuses To Auricular Cartilage Semantic Scholar from d3i71xaburhd42.cloudfront.net
Preauricular pits and sinuses are congenital anomalies located in or just in front of the ascending limb of the helix (figure 1). Preauricular sinuses are usually narrow and short, occasionally arborizing and following a tortuous course near the external ear. If there are signs of infection:

A preauricular pit is a second hole in the ear that forms before birth.

In this case , just keep the area clean by washing with soapy warm water. 0 r >> endobj 158 0 obj << /title (the preauricular sinus: This e book discusses the etiopathogenesis of preauricular sinus. Preauricular pits and sinuses are congenital anomalies located in or just in front of the ascending limb of the helix (figure 1).