Congenital periauricular fistulas: Possible variants of the preauricular sinus |
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| Institution: | 1. Department of Otorhinolaryngology-Head and Neck Surgery, Inje University College of Medicine, Busan Paik Hospital, Busan, Republic of Korea;2. Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University School of Medicine, Busan, Republic of Korea;1. School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States;2. Facial Plastic and Reconstructive Surgery, Division of Otolaryngology – Head and Neck Surgery, Department of Surgery, Texas Tech University Health Sciences Center, Lubbock, TX, United States;3. West Texas Craniofacial Center of Excellence, Lubbock, TX, United States;1. Department of Otorhinolaryngology, Oulu University Hospital, Oulu, Finland;2. Medical Research Center, Oulu University Hospital, Oulu, Finland;3. Institute of Clinical Medicine, Department of Otorhinolaryngology, University of Oulu, Oulu, Finland;4. Medical Informatics and Statistics Research Group, University of Oulu, Oulu, Finland;5. Institute of Clinical Medicine, Department of Neurology, University of Oulu, Oulu, Finland;6. Department of Neurology, Oulu University Hospital, Oulu, Finland;1. Department of Forensic Medicine, Kyoto University Graduate School of Medicine, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan;2. Department of Pediatrics, Japanese Red Cross Kyoto Daini Hospital, Haruobi-cho 355-5, Kamigyo-ku, Kyoto 602-8026, Japan;1. Boston Children''s Hospital, Department of Otolaryngology and Communication Enhancement, 333 Longwood Avenue, 3rd floor, Boston, MA 02115, USA;2. Harvard Medical School, Department of Otology and Laryngology, 25 Shattuck Street, Boston, MA 02115, USA;1. Department of Otorhinolaryngology, Gaziosmanpasa University School of Medicine, Tokat, Turkey;2. Department of Otorhinolaryngology, Antalya Training and Research Hospital, Antalya, Turkey;3. Department of Anesthesiology, Gaziosmanpasa University School of Medicine, Tokat, Turkey |
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| Abstract: | ObjectiveAlthough most preauricular sinuses are located near the anterior limb of the ascending helix, some are located in unusual areas around the auricle, as shown previously in limited reports. This study analyzed the clinical manifestations of congenital periauricular fistulas with unusual fistula locations and the possible relationship with the classical preauricular sinus.MethodsWe reviewed the medical records of patients who underwent congenital periauricular sinus excision by three surgeons and followed them for more than 6 months. Clinical manifestations were compared between classical preauricular sinus (classical group) and congenital periauricular fistula (variant group) patients.ResultsThe classical and variant groups included 192 and 20 ears each, respectively. In the variant group, the fistula locations were in the ascending helix crus (15 ears, most common), infra-auricular area (3 ears), supra-auricular area (1 ear), and anterior to tragus (1 ear). In ears with fistulas in the ascending helix crus, the fistulous tract most often showed a medial direction (9 ears). There were 4 ears in the variant group with fistulous tracts running toward the postauricular area.ConclusionsCongenital periauricular fistulas can be located anywhere around the auricle, and also considered the variant of preauricular sinus because the whole tracts were limited to lateral side of temporalis muscle and parotid gland as well as not associated with external auditory canal and facial nerve. Among them, the most common variant was a fistula on the ascending helix crus with short fistulous tract directed medially. |
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| Keywords: | Congenital preauricular fistulas Surgery |
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