Preauricular Sinus

Preauricular Sinus. The preauricular sinus (PAuS) is a congenital foramen opening or invagination usually located on the crus of the auricular helix and is considered a congenital malformation and component of multiple syndromes.

Preauricular sinuses (also known as preauricular pits or preauricular cysts) are common congenital abnormalities that are typically small blindended openings near the ascending limb of the helix These can be a simple pit or have a sinus tract a.

What is preauricular sinus? – cravencountryjamboree.com

Preauricular sinuses are thought to occur as a result of incomplete fusion of these hillocks Preauricular sinuses are usually narrow they vary in length (usually they are short) and their orifices are usually minute They may arborize and follow a tortuous course in the immediate vicinity of the external ear.

Preauricular sinus Radiology Reference Article

Preauricular sinus infection is a small opening usually located at the anterior margin of the ascending limb of the helix This pit can also be found along the postero superior margin of helix In very rare cases it can be located close to the lobule or the tragus.

Preauricular Pits: Overview and More

It’s technically a birth defect called preauricular sinuses cysts or pits They often present as tiny holes or pits near where the top of people’s ears meets their heads And there may be a fascinating evolutionary reason some people.