. >> cancer researcher doctor santanu dasgupta says there are no methods so far to diagnose it.sgupta believes a simple blood test could be a way. >> what we have found that in the patients uh- uh- of ten patient, we have found in their blood there are mitochondrial dna mutations which are present exclusively in their blood but not in normal individuals. so we have developed a panel of 11 markers, and that can be very useful to diagnose in the clinic for the patients, dasgupta says. >> the goal is to create a mitochondrial dna test to detect cancer in the localized stage. when there are no signs, it is spread outside of the breast, you can have women who are coming for screening for the mammography and other other mode of screening, so you can have those patients blood test for the mitochondrial dna mutation. >> and using this method, we'd be able to tell whether certain patients are already developing tnbc or they're at risk of developing it. >> dasgupta says the blood ■test isn't restricted just to tnbc, so we are collecting samples from all molecular subtypes like heart renew