article_snippet.sent: Due to brain tumor's location, the tumor's location can cause double vision, difficulty controlling eye movement and facial expressions, and difficulty swallowing and chewing.
article_snippet.sent: It may also cause weakness in the limbs.
article_snippet.sent: her worsening condition primarily affects children most often between the ages of four and nine.
article_snippet.sent: Between 100 and 150 new diagnoses are made a year in the U.S.
article_snippet.sent: It can be treated with radiation, but chemotherapy is generally not effective and surgery is impossible due to the spread of the cancer into healthy tissue.
article_snippet.sent: Unlike with other childhood cancers, there has been little progress in improving treatments and cure rates for the condition over the last few decades.
article_snippet.sent: Fewer than 10 per cent of children with DIPG survive two years after children with DIPG diagnosis.