Introduction: The maxillary sinus is the largest paranasal air sinus. It is first to develop and develops at 10th weeks of intrauterine life. It opens into nasal cavity so it is a link between dentistry and otorhinolaryngology. The most common pathology in maxillary sinus in adults is maxillary sinusitis, one of several possible pathologies in India. The maxillary sinuses develop around the age of 20 and as people age, they vary in size and shape, mostly because of teeth loss. The present study aims to do morphometry of normal and disease maxillary sinus on CT scan and compare the dimensions between them.

Methods: The present study was performed in the Department of anatomy after approval from institutional research committee and ethical clearance was obtained. Patient consent was taken. 100 CT head images of randomly selected population from 18-60 years’ age group were obtained from department of radiology. Height, width, AP length, total volume was calculated in patient with sinus pathology and normal sinus patients. Comparison of volume was done in between normal and sinus pathology patients. The measurement was taken using software syngo CT VA48A. Mean, standard deviation and P value was calculated. P value less than 0.05 is considered as significant.

Results: Results revealed all the dimensions except width decreases in sinus pathology patients as compared to normal sinus patients.

Conclusions: The present study provides data of normal and pathological sinuses for surgical approach. It concludes that volume of maxillary sinus decreases during pathological process and largest dimension of normal maxillary sinus is antero-posterior length.

Pratibha Shakya has completed her MD from Banaras Hindu University, one of India's most reputed universities. She is a budding anatomist with a keen interest in research and is currently an associate professor at King George’s Medical University, Lucknow, India. She has presented numerous papers at many conferences. She has many publications in PubMed and Scopus-indexed journals. Many students completed research papers and projects under her guidance. She reviewed several papers in many reputed journals, including the Cureus Journal of Medical Sciences. She also received appreciation for reviewing many textbooks of anatomy. Her passion for learning enabled her to successfully complete the Certificate Courses in Evidence-Based Diabetes Management (CCEBDM) and Cardiovascular Disease and Stroke (CCCS). She is a member of many prestigious anatomical societies, including Anatomical Society of UK.