Abstract
In this case, we demonstrated a ureteric stone that resembled bone metastasis. Because bone-seeking radiopharmaceuticals are excreted into the urine by the kidneys, normal kidneys and bladder are well visualized on skeletal scintigraphs leading to incidental detection of urinary tract abnormalities. Bone tracer uptake related to ureteral stones has been reported [Figure 1] several times before. We present a right ureteral stone mimicking abnormal focal sacral uptake on planar scan in a patient with rectal cancer. This case emphasizes the importance of using single-photon emission computed tomography/computed tomography to determine the cause of abnormal uptake on a planar scan.
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