Our data suggest that the EML4-ALK fusion transcript is not present in gastrointestinal or breast cancers and is specific to NSCLC..     ///    "Only one of the lung cancer samples tested positive for the EML4-ALK fusion transcript, whereas none were detected in 555 gastrointestinal and 90 breast cancer cases. "    ///    EML4-ALK fusion transcript is not found in gastrointestinal and breast cancers..     ///    We evaluated the expression of the EML4-ALK transcript in 104 lung cancer cases and in 645 gastrointestinal and breast cancer samples.     ///    The EML4-ALK (EML4: echinoderm microtubule-associated-protein-like 4. 