99mTc-LLEC Renal Dynamic Scan in a Patient With Pelvic Neuroblastoma

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. 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: drksrjipmer@gmail.com. Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

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