Presentation
Bilateral congenital preauricular small openings. Currently oozing pus.
Patient Data
Two small preauricular openings.
Markers were applied to the site of the patient's preauricular openings.
A short thick thick-walled sinus tract is seen on the right side. No cystic lesions.
No sizable left sinus tract nor cystic lesion is identified on MRI.
CT-sinogram is made by injection of contrast material via the skin openings.
On the right side, there's a short blind ended sinus tract with no associated cystic lesions.
On the left side, there's a blinded-ended sinus tract, with no associated cystic lesions.
Case Discussion
Preauricular sinus (preauricular pit) is a common congenital abnormality that is typically a small blind-ended opening near the ascending limb of the helix. They can be a simple pit or have a sinus tract and/or cystic component.
They are often asymptomatic but patients may present when they become infected.
Special thanks to Dr. Ahmed Sayed. MD of Radiodiagnosis. Bani Sweif University, for his great help and efforts.
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