Professor Hassab is on the Faculty at the Department of Otorhinolaryngology, Alexandria Faculty of Medicine. He graduated from the Alexandria Faculty of Medicine in 1981 and completed an ENT Residency in 1985 at the same medical school. He served as a Rhinology Fellow at the Johns Hopkins School of Medicine in the period from 1989 till 1990. He was awarded a Rhinology Fellowship at the University College of London in 1992. He has special interest in Rhinology and Skull Base Surgery with more than 40 publications in both national, international periodicals and books in the domain of sinonasal surgery. He is a reviewer for several international journals and on the editorial board of Clinical Otolaryngology and International Forum of Allergy & Rhinology. He served as an Invited Speaker and Guest Faculty for numerous international conferences and courses in the field of sinonasal and skull base endsocopic surgery.