Reverse (Convex) Conchal Bowl: Report of Eight Cases and Its Correction by Modified Conchoplasty Technique

Abstract

French

Many different congenital malformations of the external ear are encountered in otology and plastic surgery practice. However, there has been only one report in the literature of reverse (convex) conchal deformity in otherwise normal ears. Eight such cases were encountered in the combined otology and plastic surgery practice at the authors’ institution. The condition was bilateral in two patients and unilateral in six patients; these patients had no other otological abnormalities. Two patients sought surgical correction. Modified conchoplasty, done by excising and replacing the conchal cartilage in reverse fashion, is presented. Controversies surrounding the embryogenesis of concha are also addressed.

Keywords

Conchoplasty Convex concha

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References

Yii

, Walker

C.C.

. Unusual conchal deformity in otherwise normal ears. Plast Reconstr Surg 1996; 98: 726–9.

Evans

P.H.R.

. Prominent ears and their surgical correction. J Laryngol Otol 1981; 95: 881–92.

Altmann

. Malformations of the auricle and the external auditory meatus. Arch Otol 1951; 54: 115–30.

Quelprud

. Variability and genetics of human external ear. Proceedings at International Congress on Genetics. 1941; 7: 243–80.

Jia-

Y.I.Z.

, Fen

. Congenital auricular deformity consisting of cleft concha and transposition of the earlobe and antitragus. Plast Reconstr Surg 1996; 97: 428–30.

Smith

, Dickinson

J.T.

, Teachey

W.S.

. Medial conchal excision in otoplasty. Laryngoscope 1975; 85: 738–50.

Storper

I.S.

, Canalis

R.R.

, Lambert

P.R.

. Disease of the auricle and preauricular region. In: Canalis

R.F.

, Lambert

P.R.

, eds. The Ear: Comprehensive Otology. Philadelphia: Lippincott Williams and Wilkins, 2000: 325–39.

His

. Die Formentwicklung des ausseren Ohres. In anatomie menschlischer embryonen, 1885, part, III, 211.

Streeter

G.L.

. Development of the auricle in the human embryo. Contrib Embryol 1922; 69: 111–38.

10.

Wood-Jones

, Wen

I.C.

. The development of the external ear. J Anat 1934; 68: 525–30.

11.

Ely

E.T.

. An operation for prominence of the auricles. Arch Otol 1881; 10: 97.

12.

Keen

W.W.

. New method of operating for relief of deformity of prominent ears. Ann Surg 1890; 11: 49–51.

13.

Davis

J.E.

. The repair of severe cup ear deformities. In: Tanzer

R.C.

, Edgerton

M.E.

, eds. Symposium on Reconstruction of the Auricle. St Louis: CV Mosby Co, 1974: 134–9.

14.

Cardoso

A.D.

, Sperly

A.E.

. The use of composite grafts to correct the cup ear and to repair small losses of the auricle. Transactions of Fourth International Congress on Plastic and Reconstructive Surgery. Amsterdam: Excerpta Medica Foundation, 1967: 667–71.

15.

Portmann

, Portmann

. Otologic Surgery: Manual of Otosurgical Techniques. New York: Delmar Publishers, 1998: 253.

16.

Ruge

. Das Knorpelskelet des ausseren Ohres der Monotremenein Derivat des Hyoid bogeus. Morph Jahrb 1898; 25: 202.

17.

Hammar

J.A.

. Studien uber dae Entvicklung des Vorderdarms und einiger angrenz enden organe: I. Abtheilung: Allgemeine Morphologie der Schlundspalten beim Menschen Entwicklung des Mittelohrraumes und des ausseren Gehorganges. Arch Mikr Anat 1902; 59: 471.