TY - JOUR AU - Lakhani, Mubina AU - Raza, Iffat AU - Mohiuddin, Maria AU - Khan, Rosheena Nabeel AU - Sidhwani, Santosh Kumar AU - Hassan, Nuzhat PY - 2023/04/02 Y2 - 2024/03/28 TI - VARIATION IN INTERNAL CAROTID ARTERY PROTRUSION AND DEHISCENCE IN A SUBSET OF KARACHI POPULATION JF - Journal of Rawalpindi Medical College JA - JRMC VL - 27 IS - 1 SE - Articles DO - 10.37939/jrmc.v27i1.1949 UR - https://journalrmc.com/index.php/JRMC/article/view/1949 SP - AB - <p><span data-contrast="none">Objective: To find out the frequency of protrusion of Internal Carotid artery in sphenoid sinus and dehiscence of carotid canal in a subset of Karachi population.</span><span data-ccp-props="{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:200,&quot;335559740&quot;:360}"> </span></p><p><span data-contrast="none">Study design: This was a Cross-sectional study conducted at Radiology department of Ziauddin university.</span><span data-ccp-props="{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:200,&quot;335559740&quot;:360}"> </span></p><p><span data-contrast="none">Methodology:  </span><span data-contrast="auto">We analyzed 270 head and neck CT scans</span><span data-contrast="none"> 270 Head and neck CT scans (540 sides) were analyzed. CT was performed on a 16 slice Toshiba Alexion at Ziauddin Hospital, Karachi —removed for blind review---. SPSS version 20 was used for data analysis.</span><span data-ccp-props="{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:200,&quot;335559740&quot;:360}"> </span></p><p><span data-contrast="none">Results: Out of 270 CT scans analyzed, 28 (10.3) scans showed protrusion of ICA in sphenoid sinus. Out of 45 (16.6) of the subjects showed dehiscence of carotid canal. Out of total dehiscence present unilateral cases were more frequent as compared to bilateral. Unilateral protrusion was also more common as compared to bilateral protrusion of ICA.</span><span data-ccp-props="{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:200,&quot;335559740&quot;:360}"> </span></p><p><span data-contrast="none">Conclusion: Knowledge of dehiscence and protrusion related to ICA and sphenoid sinus anatomy is essential to avoid complications in endoscopic sinus surgery.</span><span data-ccp-props="{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:200,&quot;335559740&quot;:360}"> </span></p> ER -