Nuclear Medicine Bone Marrow Scan following the intravenous administration of 15 mCi of 99m technetium-filtered sulfur colloid, and a 20 minute delay, whole body computed tomography images as well as single-photon-emission computed tomography (SPECT/CT) of the chest were performed, where colored areas correspond to uptake of the radiotracer. SPECT/CT images in the axial plane view of the abdomen showing extramedullary hematopoietic activity (light blue) likely overlying background physiologic uptake in the liver capsule.