Unusual features of XXXX on PET/CT and CT imaging.

@entity5 @entity3 @entity674 @entity361 @entity2213
@entity674 ( @entity674 ) is the most common @entity361 of the gastrointestinal tract. It can be benign or malignant in behavior. Stomach, being the most common site (70%) for GISTs, is followed by the small intestine (20%). Anorectal, colonic, and esophageal GISTs are uncommon, whereas extraintestinal GISTs are extremely rare. The presenting symptoms are highly dependent on @entity5 size and location, although a large number of GISTs are asymptomatic. The purpose of this article is to highlight the unusual characteristics of GISTs illustrated by PET/CT and CT imaging. These characteristics are organized into (1) @entity5 location, (2) unusual clinical presentation, and (3) unusual sites of @entity3 . Knowing the uncommon features of GISTs is important, as they are more often seen nowadays with the increasingly important role of PET/CT and CT in @entity674 management; and these @entity5 are associated with a poorer prognosis and unwanted delay in diagnosis is avoidable. With the availability of effective treatment by @entity2213 , a prompt and early diagnosis is essential for disease control. All GISTs illustrated in this article are pathologically proven.
