Methylene blue staining and probing for fistula resection: application in a case of bilateral congenital preauricular fistulas

R Martín-Granizo, M C Pérez-Herrero, A Sánchez-Cuéllar
International Journal of Oral and Maxillofacial Surgery 2002, 31 (4): 439-41
Preauricular sinus and fistulas are minor developmental anomalies. They are bilateral in 35% to 50% of cases. We describe the application of a combined technique in a rare case of bilateral congenital preauricular fistulas. Initial fistula probing serves as a surgical guide, and further methylene blue infection helps to avoid leaving viable squamous epithelial remnants.

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