Published: 2022-11-24

Postauricular sinus: a case report

Soumick R. Sahoo, Pallavi Nayak, Nilanjan Datta


Post auricular sinus is a rare variant of the preauricular sinus in which sinus opening is located posterior to the tragus. Surgical excision of the sinus tract with its branches should be done in cases presenting with recurrent infections. There are 2 approaches unidirectional and bidirectional and the choice of approach depends on the preference of the surgeon. In our case right side post-auricular sinus was noted in a 35-year-old male which was surgically excised by unidirectional approach.


Post auricular, Sinus, Tragus

Full Text:



Heusinger HK. Fisteln von Noch Nicht Beobachteter Form. Virchows Arch. 1864;29:358.

Kim HJ, Lee JH, Cho HS, Moon IS. A case of bilateral postauricular sinuses. Korean J Audiol. 2012;16(2):99-101.

Choi SJ, Choung YH, Park K, Bae J, Park HY. The variant type of preauricular sinus: postauricular sinus. Laryngoscope. 2007;117:1798-802.

Chang PH, Wu CM. An insidious preauricular sinus presenting as an infected postauricular cyst. Int J Clin Pract. 2005;59:370-2.

Yeo SW, Jun BC, Park SN, Lee JH, Song CE, Chang KH, et al. The preauricular sinus: factors contributing to recurrence after surgery. Am J Otolaryngol. 2006;27:396-400.

Jiaqi P, Hao X, Qingyun L, Yaodong X, Qiuhong H, Yongkang O. The diagnosis and treatment of a variant type of auricular sinus: Postauricular sinus. Eur Arch Otorhinolaryngol. 2019;276:1961-7.

Riana KAH, Hafeza A, Iskandar H, L Saim. A Case Report of Postauricular Sinus Extending to Temporalis Fascia and Parotid Excised Via Unidirectional Approach. Ann Clin Case Rep. 2020;5:1898.

Tan T, Constantinides H, Mitchell TE. Te preauricular sinus: A review of its aetiology, clinical presentation and management. Int J Pediatr Otorhinolaryngol. 2005;69:1469-74.

Cho YB, Baik J, Cho Y, Lim HJ, Na AS. Clinical study on surgery of infected congenital preauricular fistula. Korean J Audiol. 1998;2:177-80.

Prasad S, Grundfast K, Milmoe G. Management of congenital preauricular pit and sinus tract in children. Laryngoscope. 1990;100:320-1.

Hong Jun K, Jae Heon L, Hyun Sang C, In Seok M. A case of bilateral postauricular sinuses. Korean J Audiol. 2012;16(2):99-101.

Sanji RR, Channegowda C, Patil SB, Anand B. Pre‐ and post‐auricular sinus. Indian J Otol. 2015;21(3):225‐8.

Hiroshi S, Tomotaka M, Yasunori M, Kazuhiko T. Dual-incision approach for excision of postauricular sinus. Eur J Plast Surg. 2016;39:159-60.

Seong Jun C, Yun-Hoon C, Keehyun P, Junho B, Hun Yi P. The variant type of preauricular sinus: Postauricular sinus. Laryngoscope. 2007;117(10):1798-802.

Shuaib Kayode A, Omotosho W. Preauricular sinus-classic versus variant types among a cross-section subjects in south western Nigeria. JAMMR. 2018;27(7):1-10.