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European Radiology

, Volume 14, Issue 2, pp 281–285 | Cite as

Ethmomaxillary sinus: a particular anatomic variation of the paranasal sinuses

  • Akif ŞirikçiEmail author
  • Yıldırım A. Bayazıt
  • Metin Bayram
  • Muzaffer Kanlıkama
Head and Neck

Abstract

We assessed the morphological and radiological characteristics of ethmomaxillary sinus (EMS), which is an enlarged posterior ethmoidal air cell occupying the superior portion of the maxillary sinus while draining into superior meatus. This study is based on 1450 patients submitted to CT examination of the paranasal sinuses between 1998 and 2002. Sequential CT scans were obtained in the coronal plane in all the patients with 2.5- to 5-mm section thickness and were evaluated for EMS. The diagnosis of EMS was made when there was a posterior ethmoidal cell occupying the superior part of the maxillary sinus while draining to the superior meatus. When EMS was diagnosed, the morphology of the septum between the and maxillary sinus, and width of the superior meatus, were noted. The EMS was found in 10 of 1450 (0.7%) patients. The coexisting anatomic variations were concha bullosa (50%), upper concha pneumatization (20%), maxillary sinus hypoplasia (20%), uncinate bulla (10%), hypertrophied inferior concha (10%), paradoxic middle concha (10%), and septate maxillary sinus (10%). There was no relation between EMS and sinus disease. The EMS is a rare anatomic variation and does not appear to be associated with sinusitis. The EMS is not a well-studied anatomic variation, and the literature is lacking adequate information about this anatomic variation. This study performed in a large series of patients will possibly contribute to better understanding of this particular anomaly.

Keywords

Ethmomaxillary sinus Paransal sinuses Computed tomography Anatomic variations 

References

  1. 1.
    Khanobthamchai K, Shankar L, Hawke M, Bingham B (1991) Ethmomaxillary sinus and hypolasia of maxillary sinus. J Otolaryngol 20:425–427PubMedGoogle Scholar
  2. 2.
    Bayram M, Sirikci A, Bayazıt YA (2001) Important anatomic variations of the sinonasal anatomy in the light of endoscopic surgery: a pictorial review. Eur Radiol 11:1991–1997CrossRefPubMedGoogle Scholar
  3. 3.
    Stammberger H (1991) Functional endoscopic sinus surgery. Mosby Year-Book, St. Louis, pp 335–365Google Scholar
  4. 4.
    Sarna A, Hayman LA, Laina FJ, Taber KH (2002). Coronal imaging of the osteomeatal unit: anatomy of 24 variant. J Comput Assist Tomogr 26:153–157CrossRefPubMedGoogle Scholar
  5. 5.
    Kondo M, Masatoshi H, Shiga H et al. (1982) Computed tomography of malignant tumors of the nasal cavity and paranasal sinuses. Cancer 50:221–231Google Scholar
  6. 6.
    Sirikci A, Bayazıt Y, Gumusburun E, Bayaram M, Kanlıkama M (2000) A new approach to the classification of maxillary sinus hypoplasia with relevant clinical implications. Surg Radiol Anat 22:243–247PubMedGoogle Scholar
  7. 7.
    Schatz CJ, Becker TS (1984) Normal CT anatomy of the paranasal sinuses. Radiol Clin North Am 22:107–118PubMedGoogle Scholar
  8. 8.
    Mafee MF (1993) Preoperative imaging anatomy of nasal ethmoid complex for functional endoscopic sinus surgery. Radiol Clin North Am 31:1–20PubMedGoogle Scholar
  9. 9.
    Bassiouny A, Newlands WJ, Ali H, Zaki Y (1982) Maxillary sinus hypoplasia and superior orbital fissure asymmetry. Laryngoscope 92:441–448PubMedGoogle Scholar
  10. 10.
    Ikeda A (1996) Volumetric measurement of the maxillary sinus by coronal CT scan. Nippon Jibiinkoka Gakkai Kaiho 99:1136–1143PubMedGoogle Scholar

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • Akif Şirikçi
    • 1
    Email author
  • Yıldırım A. Bayazıt
    • 2
  • Metin Bayram
    • 1
  • Muzaffer Kanlıkama
    • 2
  1. 1.Department of Radiology, Faculty of MedicineGaziantep UniversityGaziantepTurkey
  2. 2.Department of Otorhinolaryngology and Head and Neck Surgery, Faculty of MedicineGaziantep UniversityGaziantepTurkey

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