Small (< 10-mm) incidentally found XXXX , Part 1: reasons for detection, demographics, location, and risk factors in 212 consecutive @entity1 .

@entity1 @entity2758 @entity66 @entity101 @entity510 @entity63 @entity1756 @entity16 @entity439 @entity10 @entity438
OBJECT: The widespread use of imaging techniques for evaluating nonspecific symptoms (vertigo, dizziness, memory concerns, unsteadiness, and the like) and focal @entity16 related to @entity66 has led to increased identification of asymptomatic incidentally discovered @entity438 ( @entity438 ). The management of these incidental @entity439 is controversial and many factors need to be considered. The authors describe reasons leading to diagnosis, demographics, and risk factors in a large consecutive series of @entity1 with small incidentally found @entity438 . METHODS: The authors prospectively evaluated 335 @entity1 harboring 478 small (< 10-mm) @entity438 between January 2008 and May 2011. @entity1 with known @entity439 , possibly symptomatic @entity439 , @entity2758 -related @entity439 , @entity1 with a history of @entity510 from another @entity439 , and @entity1 harboring extradural @entity439 were excluded from the analysis. Only truly incidental small @entity439 (272 @entity439 in 212 @entity1 ) were considered for the present analysis. Data regarding the reason for detection, demographics, location, and presence of potential risk factors for @entity439 formation were prospectively collected. RESULTS: There were 158 female (74.5%) and 54 male (25.5%) @entity1 whose mean age was 60.6 years (median 62 years). The most common reason for undergoing the imaging study that led to a diagnosis of the @entity439 was evaluation for nonspecific spells and symptoms related to focal @entity63 (43.4%), known/possible intracranial or neck pathology (24%), and @entity10 (16%). The most common location (27%) of the @entity439 was the middle cerebral artery; the second most common (22%) was the paraclinoid internal carotid artery (excluding cavernous @entity439 ). Sixty-nine percent of @entity1 were current or prior smokers, 60% had a diagnosis of @entity101 , and 23% had one or more relatives with a history of @entity438 with or without @entity510 . CONCLUSIONS: Small incidental @entity438 are more commonly diagnosed in elderly individuals during imaging performed to investigate ill-defined spells or focal @entity63 , or during the evaluation of known or probable unrelated intracranial/neck pathology. @entity101 , smoking, and family history of @entity439 are common in this @entity1 population, and the presence of these risk factors has important implications for treatment recommendations. Although @entity439 (excluding intracavernous @entity439 ) are uncommon in @entity1 with @entity1756 , this location is very common in @entity1 with small incidental @entity438 .
