Figure 3. Scintigram with 99mTc-labeled albumin macroaggregate. A) Hour 1, early phase, physiological uptake in the liver and spleen. B) Hour 2. C) Hour 3. D) Hour 4, late phase, abnormal concentration of the radiotracer in the left flank in intestinal projection. Nuclear Medicine Department, National Center of Radiotherapy - Managua, Nicaragua.