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 coronal plane view depict paraspinal conglomerates at the level of the thoracic spine with associated increased uptake (light blue), suggestive of extramedullary hematopoiesis, compressing the thoracic cavity without involvement of the lung parenchyma, and widespread marrow expansion, with a markedly enhanced liver capsule (red-yellow).