PMC6357703_01
Technetium-99m methylene diphoshonate whole-body bone scintigraphy (a) revealed extensive extraosseous activity throughout the pelvis and abdomen as well as some foci of increased uptake in the thorax. Additional coronal, transverse, and sagittal fused single-photon emission computed tomography-computed tomography images (b-d) precisely visualized radionuclide accumulation in calcified soft tissue masses, without any pathological tracer uptake in the bone. These findings were confirmed by contrast-enhanced computed tomography images (e-g) and consistent with widespread omental and peritoneal calcified tumor implants
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F1
Planar whole-body images [Figure 1a] were acquired 2.5 h after intravenous injection of the bone-seeking agent Tc-99m MDP. Additional single-photon emission computed tomography (SPECT) with low-dose CT images [Figure 1b-d] of the abdomen and pelvis precisely visualized radionuclide accumulation in calcified soft tissue metastases, without any pathological uptake in the bone. These findings were confirmed with diagnostic contrast-enhanced CT evaluation [Figure 1e-g] and consistent with widespread omental and peritoneal metastatic deposits.