light), Israel
OR Books, an American publisher
Owasco River Railway, Auburn, New York, U.S. (by reporting mark)
TUI fly Netherlands, formerly Arke, a Dutch charter airline (by IATA designator)

Language and linguistics
Or (digraph), in the Uzbek alphabet
Or (letter) (or forfeda), in Ogham, the Celtic tree alphabet
Odia language, an ancient Indo-Aryan tongue spoken in East India (ISO 639)
Or, an English grammatical conjunction
-or, an English agent noun suffix
Or, a digraph in Taiwaneses Daī-ghî tōng-iōng pīng-im phonetic transcription

Places
Europe
Or (Crimea), an isthmus of the Black Sea
Or (river), a tributary of the Ural
Province of Oristano, Italy (by vehicle code)

United States
Oregon, a U.S. state (by postal abbreviation)

Science, technology, and mathematics
Computing and mathematics
Or (logic), logical disjunction
Exclusive or (XOR), a logical operation
Bitwise OR, an operator in computer programming, typically notated as or or |
The short-circuit operator or, notated or, ||, or or else
Elvis operator, an operator in computer programming that returns its first operand if its value is considered true, and its right operand if not
Null coalescing operator, an operator in computer programming
Onion routing, anonymous networking technique (also Onion Router)
OR gate, an integrated circuit in electronics
Object-relational mapping

Other uses in science and technology
Odds ratio, a measure of effect size in statistics
OR, a previous title of the Journal of the Operational Research Society
Operating room, in medicine
Operations research, or operational research, in British English
Operations readiness

Titles and ranks
Official receiver, a statutory office holder in England and Wales
Order of Roraima of Guyana, an award of the Republic of Guyana
Other ranks, Denmark (disambiguation), military personnel in all branches of the Danish military that are not officers by the NATO system of ranks and insignia
Other ranks (UK), personnel who are not commissioned officers, usually including non-commissioned officers (NCOs), in militaries of many Commonwealth countries

Other uses
Or (name), Hebrew given name and surname
Official Records of the American Civil War
Olympic record, a term for the best performances in Olympic Games
Or (heraldry), a gold or yellow tincture (from the French word for "gold")
Own Recognizance, the basis for releasing someone awaiting trial without bail

See also
0r (zero r), meaning "no roods", in old measurements of land area
And (disambiguation)
OAR (disambiguation)
Ore (disambiguation)
Either/Or (disambiguation)
Gene testing may be useful when trying to ascertain which non-symptomatic family members may be at risk of developing polyps, however having a known familial mutation would be unlikely to change the course of treatment. A known mutation may also be of use for affected individuals when they decide to start a family as it allows them reproductive choices.While mutations in the gene PTEN were also thought to have caused juvenile polyposis syndrome, it is now thought that mutations in this gene cause a similar clinical picture to juvenile polyposis syndrome but are actually affected with Cowden syndrome or other phenotypes of the PTEN hamartoma tumor syndrome. Screening
People with juvenile polyps may require yearly upper and lower endoscopies with polyp excision and cytology. Their siblings may also need to be screened regularly. Treatment
Malignant transformation of polyps requires surgical colectomy. Prognosis
Most juvenile polyps are benign; however, malignancy can occur. The cumulative lifetime risk of colorectal cancer is 39% in patients with juvenile polyposis syndrome. References
Further reading
Larsen Haidle J, Howe JR (September 29, 2011). Juvenile Polyposis Syndrome. University of Washington, Seattle. PMID 20301642. NBK1469. In Pagon RA, Bird TD, Dolan CR,  et al., eds. (1993). GeneReviews [Internet]. Seattle WA: University of Washington, Seattle. PMID 20301295. == External links ==