A delegation of pediatric cardiologists from the Hadassah Medical Center and two other Hadassah’s physicians have developed a method of extracting DNA samples from very small fragments of brain tumor tissue, which previously were considered too small for analysis. The new procedure, as simple as taking a blood sample, can potentially eliminate the need for invasive biopsies that are now required to examine the molecular structure of tumors and create a treatment protocol. Prof. Tali Siegal and her team in Hadassah’s Leslie and Michael Gaffin Center for Neuro-Oncology are now working on creating a complete DNA kit—the first and only one of its kind for this type of tumor analysis. The kit would enable physicians who don’t have access to major medical centers to perform this sophisticated analysis.