We present the case of a 53-year-old man with left hydroureteronephrosis who underwent 99mTc-DTPA renography for functional assessment of bilateral kidneys. 99mTc-DTPA renography of the patient showed diffusely increased extrarenal 99mTc-DTPA uptake in the visualized lumbosacral vertebrae and in the pelvic bones, on the blood flow and functional phase of the renography, which was suggestive of disseminated skeletal disease. Subsequent MRI lumbosacral spine and 18F-FDG PET/CT revealed extensive skeletal metastases corresponding to the increased extrarenal 99mTc-DTPA uptake in the lumbosacral vertebrae and the pelvic bones from primary left lung mitotic lesion.
From the Department of Nuclear Medicine and PET/CT, Mahajan Imaging Centre, Sir Ganga Ram Hospital, New Delhi, India.
Received for publication July 12, 2018; revision accepted August 18, 2018.
Conflicts of interest and sources of funding: none declared.
Correspondence to: Nikhil Seniaray, DRM, Department of Nuclear Medicine and PET/CT, Mahajan Imaging Centre, Sir Ganga Ram Hospital, Room No. 25, Old Rajinder Nagar, New Delhi 110060, India. E-mail: email@example.com.