Maryam Faiz Qureshi, Ambreen Usmani, Ayesha Mehwish, Yasmeen Mahar, Maria Azam Khattak, Rida Rubab Ahmed.
Anatomical Variations of Rhinogenic Headache and its Relation with Sinusitis: a Computerized Tomography (CT) Scan Study.
Pak J Med Dentistry Jan ;11(3):37-43.

Background: Variable anatomy, hallmark of sinonasal region is the reason for the etiology of sinonasal symptoms such as rhinogenic headache. This study aimed to investigate the incidence of anatomical variations of the nasal cavity and paranasal sinuses in sinusitis patients with complaint of rhinogenic headache on computed tomography of paranasal sinuses, and the correlation of these variants with a rhinogenic headache. Methods: A prospective cross-sectional study (n=50) of 18-60 years having sinusitis with rhinogenic headache was steered at the Department of Radiology in the PNS Shifa Hospital of Karachi, Pakistan, between June-December 2021. After obtaining written informed consent, all subjects were investigated for various anatomical variants of the sinonasal region detected on computed tomographic scans of paranasal sinuses and were correlated with a rhinogenic headache. The Chi-square test and Pearson correlation were applied for statistical analysis and the level of significance was set at p<= 0.05. Results: The most common anatomical variant of sinonasal region detected was agger nasi cells 32(64%) (Right: r/r -0.24, p =0.09; Left: r/r -0.28, p = 0.04), followed by deviated nasal septum 28(56%) (r/r 0.04, p= 0.75), concha bullosa 23(46%) (r/r 0.07, p=0.59), deviated nasal septum with bony spur (r/r 0.07, p=0.62) and other variants. The overall, study found male (68%) predominance. Significant association existed between rhinogenic headache and some of the anatomical variants along with sinus mucosal thickening (p<0.05). Conclusion: The significant association (p<0.05) was found between rhinogenic headache and different anatomical variants like agger nasi cells, left-sided agger nasi cells, right-sided Haller`s cells, left-sided maxillary and ethmoid sinusitis.

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