Congenital deformities of the auricle

Classification of the deformities according to Roger

 * mikrotia (hypoplasia of auricle)
 * lop ear
 * cup ear
 * sticking out auricle (otapostasis)

Classification according to Tanzer

 * Anotia (complete absence of the auricle)
 * complete hypoplasia (mikrotia) with / without outer ear canal atrophy
 * hypoplasia of middle 1/3 of the ear
 * hypoplasia of upper 1/3 of the ear: „constricted ear“ (overhanging earlobe + cone-shaped ear), cryptotia, hypoplasia of entire upper 1/3
 * sticking out auricle

Other deformities

 * appendices praeauriculares (rudimentary growths around the auricle)
 * fistulas incomplete (leading to a short distance) / complete (leading up to the mouth or pharynx)

Associated disorders

 * hearing disorders based on middle ear anomalies, developmental disorders of the inner ear, hereditary disorders of cochlea development
 * hemifacial mikrosomia
 * urinary tract anomalies

Treatment

 * surgery changing the shape of the cartilage of the pinna → soft tissue change
 * most common are operations of sticking out auricles
 * in case of non-development of the auricle we reconstruct the cartilage part with cartilage from the rib + soft tissues by tissue expansion and local shifts

Related articles

 * Congenital defects of the outer and middle ear
 * Aquired defects of the auricle