title: What is a Rare Cancer?
abstract: Many rare cancers are essentially an enigma, with little to no information in the medical literature. Defining a rare cancer is not as easy as it might seem. As a guide, generally an incidence of fewer than 6/100,000 is considered rare. Much of the research regarding rare diseases is in its infancy.
authors.affiliation: Discipline of Surgery, The Whiteley-Martin Research Centre, Nepean Hospital, The University of Sydney, Penrith, New South Wales 2751, Australia. guy.eslick@sydney.edu.au
authors.forename: Guy D
authors.initials: GD
authors.lastname: Eslick
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000145:classification / Q000453:epidemiology*; D035583:Rare Diseases / Q000145:classification / Q000453:epidemiology*; D055815:Young Adult