Radiology General e407d638 Tc Haemangioma RBC's – A Biliary tree B Renal disease C Pulmonary embolism D Spleenic disease High-Yield Explanation Tc 99 - Labelled RBCs provides information about red cell pooling, so it is used in - HHaemangiomadetection, Gastrointestinal bleeding, Spleenic disease, Cardiac ventriculography.