title: High Occurrence of Non-Clear Cell Renal Cell Carcinoma in Oman.
abstract: It is conventionally accepted that renal cell carcinoma (RCC) occurs in older patients and the clear cell type is the most common histology. However, ethnic variations exist and this study was carried out to determine the epidemiological pattern of RCC in Oman. Ninety RCC patients who presented to a tertiary care center in the Sultanate of Oman from 2010 to 2014 were studied. The main findings were that the median age of presentation was low, more patients presented with localized stage, and there was a higher incidence of non-clear (especially papillary) histology. Data from other Gulf countries and possible reasons for the different profile are discussed.
authors.affiliation: Department of Medical Oncology, National Oncology Center, The Royal Hospital, Muscat, Sultanate of Oman E-mail : avenniyoor@gmail.com.
authors.forename: Ajit
authors.initials: A
authors.lastname: Venniyoor
authors.forename: Abdul Monem
authors.initials: AM
authors.lastname: Essam
authors.forename: Fatma
authors.initials: F
authors.lastname: Ramadhan
authors.forename: Heeranand
authors.initials: H
authors.lastname: Keswani
authors.forename: Itrat
authors.initials: I
authors.lastname: Mehdi
authors.forename: Bassim Al
authors.initials: BA
authors.lastname: Bahrani
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002292:Carcinoma, Renal Cell / Q000453:epidemiology* / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D007680:Kidney Neoplasms / Q000453:epidemiology* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D009850:Oman / Q000453:epidemiology; D011379:Prognosis; D055815:Young Adult