The survival rate of children suffering from cancer has increased, but collateral effects have been observed. A mixed-method was used to evaluate cańcer childreń's language and cognitive abilities. Variables such as IQ and verbal comprehension, perceptual reasoning, working memory and processing speed were tested. Furthermore, a semi-guided 30-minute-long conversation on everyday matters was used for linguistic evaluation. Results confirm that language problems were present at phonological, lexical-semantic, structural or syntactic, pragmatic and non-verbal levels.