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\s=b\Unilateral choanal atresia is a congenital problem initially observed by the otolaryngologist as unilateral nasal obstruction. Elective surgical correction can be done using the transnasal, transpalatal, transantral, or transseptal techniques. Two patients underwent this procedure with the transseptal technique. We believe this is a safe, uncomplicated, and reliable technique for the correction of unilateral choanal atresia. (Arch Otolaryngol 1982;108:659-661) Choanal atresia is a congenital obstruction between the nasal cavity and the nasopharyngeal vault. The first recorded case was by Johann Roedere1 in Germany around 1755. Many operative techniques have been devised for the surgical correction of choanal atresia since the first re¬ ported surgical procedure by Emmert2 in 1853, using a curved trocar to punc¬ ture a bony obstruction. Bilateral choanal atresia demands immediate recognition in the newborn and resto¬ ration of the nasal airway as soon as possible. However, unilateral choanal atresia is usually recognized in child¬ hood and requires an elective, safe operative technique with minimal morbidity and predictable long-term results. The relatively widespread use of transseptal surgery of the sphenoid sinus and the pituitary gland through microscopic visualization makes the transseptal repair of unilateral choa¬ nal atresia an attractive operative technique of this procedure; two rep¬ resentative cases are included.

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Este diagndstico debe ser tomado en consideracidn en cualquier paciente con hipertension endocraneana, supuracidn de oidos y evidencia radiobgica de una enfermedad mastoidea. Cuando se reconoce pronto y se trata enseguida, el prondstico de una recuperacidn completa parece bueno. REFERENCES Altman, J., Winkelmann, R. K. (1963) 'Xanthomatous cutaneous lesions of histiocytosis X.' Archives of Dermatology, 87, 164. Boddie, H. G., Banna, M., Bradley, W. B. (1974) "'Benign" intracranial hypertension-a survey of the clinical and radiologic features and long-term prognosis.' Brain, 97, 31 3. Buchheit, W. A., Burton, C., Haag, B., Shaw, D. (1969) 'Papilledema and idiopathic intracranial hypertension.' New England Journal of Medicine, 280, 938. Cohn, A. M., Sataloff, J., Lindsay, J. R. (1970) 'Histiocytosis X (Letterer-Siwe disease) with involvement of the inner ear.' Archives of Otolaryngology, 91, 24. Feinberg, S. B., Langer, L. 0. (1965) 'Roentgen findings of increased intracranial pressure and communicating hydrocephalus as insidious manifestations of chronic histiocytosis X.' American Journal of Roentgenology, 95, 41. Foley, J. (1955) 'Benign forms of intracranial hypertension, "toxic" and "otitic" hydrocephalus.' Brain, 78, 1. Glatt, M. A. (1946) 'Xanthoma or lipoid granuloma of the temporal bone (Hand-Christian-Schiler syndrome).' Archives of Otolaryngology, 43, 110. Greer, M. (1962) 'Benign intracranial hypertension. I. Mastoiditis and lateral sinus obstruction.' Neurology, 12,472. -(1967) 'Benign intracranial hypertension (pseudo-tumor cerebri).'Eosinophilic granuloma of skin and mucous mem-McGavran, M. H., Spady, H. A. (1960) 'Eosinophilic granuloma of bone: A study of twenty-eight cases.' Martin, T. H. (1969) 'Solitary eosinophilic granuloma of the temporal bone-a case report.' Laryngoscope, Rosenwasser, H. (1940) 'Lipoid granulomatosis (Hand-Schiiller-Christian disease) involving the middle Schuknecht, H. F., Perlman, H. B. (1948) 'Hand-Schiiller-Christian disease and eosinophilic granuloma brane: association with diabetes insipidus.' Archives of Dermatology, 75,45. Journal of Bone and Joint Surgery, 42A, 979. 70,2165. ear and temporal bone.' Archives of Otolaryngology, 32, 1045. of the skull.' Annals of Otology, Rhinology and Luryngology, 57, 643.