These polyps are usually benign , however they are at greater risk of developing gastrointestinal cancers , in particular colon cancer .
JPS is characterized by hamartomatous polyps in the gastrointestinal ( GI ) tract .
These polyps are usually benign , however polyps are at greater risk of developing gastrointestinal cancers , in particular colon cancer .
JPS is characterized by hamartomatous polyps in the gastrointestinal ( GI ) tract .