Anatomical variations of sinonasal region: a CT scan study
Keywords:
Multislice CT, PNS region, Anatomical variations, Surgical complicationsAbstract
Multislice CT is currently the imaging modality of choice for evaluating PNS & adjacent structures. Such a method has been increasingly utilized in the assessment of anatomical variations, allowing their accurate identification with high anatomical details. Some anatomical variations may predispose to sinonasal disease, constituting areas of high risk for injuries & complications during surgical procedures. Therefore, the recognition of such variations is critical in the preoperative evaluation for endoscopic surgery.
Metrics
References
Landsburg R, Friedman M. A computer assisted anatomical study of the nasofrontal region. Laryngoscope. 2001 Dec;111(12):2125-30.
Earwaker J. Anatomic variants in sinonasal CT. Radiographics. 1993;13:381-415.
Kumar H, Choudhary R, Kakar S. Accessory maxillary ostia: topography and clinical application. J Anat Soc India. 2001;50:3-5.
Hajiioannou J, Owens D, Whittet HB. Evaluation of anatomical variation of the crista galli using computed tomography. Clin Anat. 2010;23:370-3.
Miranda CMNR, Maranhao CPM, Arraes FMNR, Padilha IG, Farias LPG, Jatoba MSA, et al. Anatomical variations of paranasal sinuses at multislice computed tomography: what to look for. Radiol Bras. July 2011;44(4):256-62.
Keros P. Über die praktische Bedeutung der Niveauunter-schiede der Lamina cribrosa des Ethmoids. Z Laryngol Rhinol Otol. 1962;41:809-13.
Perez-Pinas, Sabate J, Carmona A, Catalina-Herrera CJ, Jimenez-Castellanos J. Anatomic variations in the human paranasal sinus region study by CT. J Anat. 2000;197:221-7.
Dua K, Chopra H, Khurana AS, Munjal M. CT scan variations in chronic sinusitis. Indian J Radiol Imaging. 2005;15:315-20.
Badia L, Lund VJ, Wei W, Ho WK. Ethnic variation in sinonasal anatomy on CT scanning. Rhinology. 2005;43:210-4.
Som PM, Park EE, Naidch TP, Lawson W. Crista galli pneumatization is an extension of the adjacent frontal sinus. Am Soc Neuroradiol. 2009 Jan;30:31-3.
Schaefer SD, Manning S, Close LG. Endoscopic paranasal sinus surgery: indication and consideration. Laryngoscope. 1989;99:1-5.
Kennedy DW, Senior BA. Endoscopic sinus surgery: a review. Otolaryngol Clin North Am. 1997;30:313-30.
Damm M, Quante G, Jungehuelsing M, Stennert E. Impact of functional endoscopic sinus surgery on symptoms and quality of life in chronic rhino sinusitis. Laryngoscope. 2002;112:310-5.
