<prompt> Brain abscess in cyanotic heart disease is commonly located inCerebellar hemisphereThalamusTemporal lobeParietal lobe  <response>: Brain abscesses in congenital cyanotic heart diseases occur due to hematogenous seeding of bloodborne bacteria. These blood borne bacteria bypass the pulmonary capillary bed dt right to left shunt. They commonly infect parietal frontal lobes territory of middle cerebral artery. 