DefinitionThis section has been translated automatically.
Unilateral or bilateral (unilateral in about 85% of patients), congenital, manifesting in childhood or adolescence (less frequently in early adulthood), potentially combined with other anomalies, branchiogenic malformation of the 1st gill duct.
See also cysts and fistulas, branchiogenic.
Branchiogenic malformations give rise to cysts and sinuus, which are drained externally through the skin at certain sites on the one hand, and internally into the pharynx on the other. On the skin they appear as red-brown, smooth-surfaced or verrucous papules or as inconspicuous indurations, but also as oozing, granulomatous inflammations (usually they then become clinically conspicuous).
ManifestationThis section has been translated automatically.
m:w=1:1; congenital fistulas are usually discovered between the ages of 2 and 16 years.
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Clinical featuresThis section has been translated automatically.
The external fistula opening is located above or in front of the tragus or in the area of the ascending helix. It is perceived as a 0.3-0.5 cm large, reddish-brownish nodule resembling a foreign body granuloma; often with a visible central porus. Rare small ulcer. Usually the porus is not inflammatory. However, it can also develop folliculitis-like inflammatory symptoms with purulent secretion.
Accumulates stubborn auditory canal eczema.
DiagnosisThis section has been translated automatically.
TherapyThis section has been translated automatically.
Excision following radiographic imaging of the fistula tract after probing and injection of contrast medium. A specialist excision is recommended!
LiteratureThis section has been translated automatically.
- Ellies M et al (1998) Clinical evaluation and surgical management of congenital preauricular fistulas. J Oral Maxillofac Surgery 56: 827-830
- Kuczkowski J et al (2011) Diagnosis and treatment of preauricular fistulas in children. Otolaryngol 65: 194-198
- Martin-Granizo R et al (2002) Methylene blue staining and probing for fistula resection: application in a case of bilateral congenital preauricular fistulas. Int J Oral Maxillofac Surgery 31: 439-441
- Nakano M et al (1999) Congenital cheek fistula: a report of three cases. Br J Plast Surgery 52: 311-313
- Nicollas R et al (2000) Congenital cysts and fistulas of the neck. Int J Pediatr Otorhinolaryngol 55: 117-124
- Song J et al (2015) Analysis of chromosome regions 8q11.1-q13.3, 1q32-q34.3 and 14q31.1-q13.3 in a Chinese family with congenital preauricular fistula. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 32:472-475
- Zou F et al (2003) A locus for congenital preauricular fistula maps to chromosome 8q11.1-q13.3 J Hum Genet 48: 155-158
Incoming links (8)Auricular fistula; Cyst; Cysts and fistulas, branchiogenic; Ear malformations; Fistula; Fistula auris congenita; Goldenhar syndrome; Preauricular fistula;
Outgoing links (4)Cysts and fistulas, branchiogenic; Excision; Foreign body granuloma; Ulcer of the skin (overview);
Please ask your physician for a reliable diagnosis. This website is only meant as a reference.