A 5-month-old boy with ultrasonography showing bilateral hydronephrosis, referred for renal scan. On 99mTc-L,L,ethylenedicysteine (99mTc-LLEC) renal scan, tracer blush in flow images in the region of urinary bladder was seen and tumor mass was suspected. Contrast-enhanced CT showed a soft tissue mass in sacrococcygeal region. Histopathological examination of biopsy tissue revealed malignant round cell tumor and immunohistochemistry consistent with neuroblastoma. 131I-MIBG scan revealed uptake in the pelvic mass with no distant metastasis.
From the *Department of Nuclear Medicine, AIIMS, New Delhi; and
†Department of Nuclear Medicine, JIPMER, Puducherry, Pondicherry, India.
Received for publication November 11, 2018; revision accepted December 30, 2018.
Conflicts of interest and sources of funding: none declared.
Correspondence to: Konudula Sreenivasa Reddy, MD, Department of Nuclear Medicine, AIIMS, Room 902, Hostel 18, Masjid Moth Campus, New Delhi, India. E-mail: firstname.lastname@example.org.