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  • Title: [Management and classification of first branchial cleft anomalies].
    Author: Zhong Z, Zhao E, Liu Y, Liu P, Wang Q, Xiao S.
    Journal: Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi; 2013 Jul; 27(13):691-4. PubMed ID: 24073574.
    Abstract:
    OBJECTIVE: We aimed to identify the different courses of first branchial cleft anomalies and to discuss the management and classification of these anomalies. METHOD: Twenty-four patients with first branchial cleft anomalies were reviewed. The courses of first branchial cleft anomalies and their corresponding managements were analyzed. Each case was classified according to Olsen's criteria and Works criteria. RESULT: According to Olsen's criteria, 3 types of first branchial cleft anomalies are identified: cysts (n = 4), sinuses (n = 13), and fistulas (n = 7). The internal opening was in the external auditory meatus in 16 cases. Two fistulas were parallel to the external auditory canal and the Eustachian tube, with the internal openings on the Eustachian tube. Fourteen cases had close relations to the parotid gland and dissection of the facial nerve had to be done in the operation. Temporary weakness of the mandibular branch of facial nerve occurred in 2 cases. Salivary fistula of the parotid gland occurred in one patient, which was managed by pressure dressing for two weeks. Canal stenosis occurred in one patient, who underwent canalplasty after three months. The presence of squamous epithelium was reported in all cases, adnexal skin structures in 6 cases, and cartilage in 14 cases. The specimens of the fistula which extended to the nasopharynx were reported as tracts lined with squamous epithelium (the external part) and ciliated columnar epithelium (the internal part). According to Work's criteria, 9 cases were classified as Type I lesions, 13 cases were classified as Type II lesions, and two special cases could not be classified. The average follow-up was 83 months (ranging from 12 to 152 months). No recurrence was found. CONCLUSION: First branchial cleft anomalies have high variability in the courses. If a patient is suspected to have first branchial anomalies, the external auditory canal must be examined for the internal opening. CT should be done to understand the extension of the lesion. For cases without internal openings in the external auditory canal, CT fistulography should be done to demonstrate the courses, followed by corresponding treatment. Two special cases might be classified as a new type of lesions.
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