Advertisement

Computed tomography of choanal atresia: special considerations of the unilateral type

  • Vijay M. Rao
    Correspondence
    Address reprint requests to: Vijay M. Rao, MD, Department of Radiology, Thomas Jefferson University Hospital, 111 South 11th Street, Philadelphia, Pennsylvania 19107.
    Affiliations
    From the Departments of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania USA

    Tufts University School of Medicine, New England Medical Center Hospital, Boston, Massachusetts USA
    Search for articles by this author
  • Richard J. Wechsler
    Affiliations
    From the Departments of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania USA

    Tufts University School of Medicine, New England Medical Center Hospital, Boston, Massachusetts USA
    Search for articles by this author
  • Barbara L. Carter
    Affiliations
    From the Departments of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania USA

    Tufts University School of Medicine, New England Medical Center Hospital, Boston, Massachusetts USA
    Search for articles by this author
  • A. Edward O'hara
    Affiliations
    From the Departments of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania USA

    Tufts University School of Medicine, New England Medical Center Hospital, Boston, Massachusetts USA
    Search for articles by this author
      This paper is only available as a PDF. To read, Please Download here.

      Abstract

      Seven cases of choanal atresia are presented: four cases with bilateral choanal atresia, and three cases with unilateral choanal atresia. The patients in three of these cases were born with the CHARGE association-an association of choanal atresia with coloboma, heart disease, retarded growth, genital hypoplasia, and ear anomalies. Diagnosis in all cases was confirmed. Computed tomography generally confirms the clinical diagnosis of bilateral choanal atresia. Unilateral choanal atresia, however, presents late, and both the clinical and radiographic manifestations may be subtle. In all our cases of unilateral choanal atresia, computed tomography demonstrated the definitive components accounting for this deformity. Computed tomography, because it so accurately defines the anatomic malformation, is now the imaging modality of choice in this entity.

      Keywords

      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'

      Subscribe:

      Subscribe to Clinical Imaging
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect

      References

        • Maniglia A.J.
        • Goodwin W.J.
        Congenital choanal atresia.
        Otolaryngol Clin North Am. 1981; 14: 167-173
        • Morrison R.
        Congenital choanal atresia.
        Radiography. 1979; XLV: 3-7
        • Shirkhoda A.
        • Biggers W.P.
        Choanal atresia.
        Radiology. 1982; 142: 93-94
        • Tadmore R.
        • Ravid M.
        • Millet D.
        • Leventon G.
        Computed tomographic demonstration of choanal atresia.
        AJNR. 1984; 5: 743-745
        • Hengerer A.S.
        • Strome M.
        Congenital atresia — a new embryologic theory and its influence on surgical management.
        Laryngoscope. 1982; 92: 913-921
        • Caldarelli D.D.
        • Friedberg S.A.
        Transnasal microsurgical correction of choanal atresia.
        Laryngoscope. 1977; 87: 2023-2030
        • Harner S.G.
        • McDonald T.J.
        • Reese D.F.
        The anatomy of congenital choanal atresia.
        Otolaryngol Head Neck Surg. 1981; 89: 7-9
        • Hasegawa M.
        • Oku T.
        • Tanaka H.
        • et al.
        Evaluation of CT in the diagnosis of congenital choanal atresia.
        J Laryngol Otol. 1983; 97: 1013-1015
        • Pagon R.A.
        • Graham J.M.
        • Zonana J.
        • Youg S.L.
        Coloboma, congenital heart disease, and choanal atresia with multiple anomalies: CHARGE association.
        J Pediatr. 1982; 99: 223-227
        • McGovern F.H.
        Association of congenital choanal atresia and congenital heart disease. Report of two cases.
        Ann Otol Rhinol Laryngol. 1953; 62: 894-895
        • Winther L.K.
        Congenital choanal atresia-anatomic, physiological and therapeutic aspects, especially the endonasal approach under endoscopic vision.
        Arch Otolaryngol. 1978; 104: 72-78
        • Slovis T.L.
        • Renfro B.
        • Watts F.B.
        • et al.
        Choanal atresia: precise CT evaluation.
        Radiology. 1985; 155: 345-348