2007
DOI: 10.1097/mlg.0b013e3180caa1ca
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The Variant Type of Preauricular Sinus: Postauricular Sinus

Abstract: Objective: Preauricular sinuses (PAS) are common congenital malformations that usually occur at the anterior margin of the ascending limb of the helix, but the positions of PAS and directions on the fistular tracts are rarely posterior to the external auditory canal (EAC), which presents as a postauricular swelling. We named these cases as the variant type of PAS ('postauricular sinuses'), and compared their clinical manifestations with those of the classical type.Study Design: A retrospective study. Methods:W… Show more

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Cited by 49 publications
(50 citation statements)
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“…Variant presentations as seen in our case, the pit is located posterior to the imaginary line with the patient presenting with postauricular abscess which may be confused with other pathology [5].…”
Section: Discussionmentioning
confidence: 92%
“…Variant presentations as seen in our case, the pit is located posterior to the imaginary line with the patient presenting with postauricular abscess which may be confused with other pathology [5].…”
Section: Discussionmentioning
confidence: 92%
“…However, its frequency is known to be very rare, compared to preauricular sinus 3). In abroad, Chang and Wu6) have reported 3 cases of preauricular sinus in which the sinus opening was located in the crus of helix and the sinus was placed posterior to the auricle.…”
Section: Discussionmentioning
confidence: 99%
“…Recently, Choi, et al3) have named a perpendicular line posterior to the tragus and ascending limb of the helix as extended tragal line. It was classified as preauricular sinus when the opening of the fistula was located anterior to the extended tragal line and classified as postauricular sinus when the opening was posterior to this line.…”
Section: Discussionmentioning
confidence: 99%
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“…Variant presentations as seen in our case, the pit is located posterior to the imaginary line with the patient presenting with postauricular abscess which may be confused with other pathology. 5 It is a common anomaly which is usually asymptomatic and is noted during routine ENT examination but it may also present as discharging sinus, recurrent infec tions with abscess and facial cellulitis. The most common pathogens causing infection are Staphylococcus epidermidis, Staphylococcus aureus, Streptococcus viridans, Peptococcus sp.…”
mentioning
confidence: 99%