Primary Intrarenal/Perirenal Neuroblastoma Mimicking
Wilms’ Tumor at Presentation in a 5-Year-Old Girl:
A Case Report from Siriraj Hospital
Jitsupa Treetipsatit MD*, Kanapon Pradniwat MD*,
Mongkol Laohapensang MD**, Chantima Rongviriyapanich MD***,
Kamon Phuakpet MD****, Kleebsabai Sanpakit MD****
Affiliation :
* Department of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
** Division of Pediatric Surgery, Department of Surgery, Faculty of Medicine Siriraj Hospital,
Mahidol University, Bangkok, Thailand
*** Division of Diagnostic Radiology, Department of Radiology, Faculty of Medicine Siriraj Hospital,
Mahidol University, Bangkok, Thailand
**** Division of Hematology and Oncology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital,
Mahidol University, Bangkok, Thailand
Primary intrarenal/perirenal neuroblastoma (NB) is NB that primarily arises in intrarenal and/or perirenal
regions. Regarding its location, this tumor can mimic Wilms’ tumor, a more common pediatric renal tumor, at presentation.
Owing to difference in clinical management and prognosis, it is crucial to distinguish primary intrarenal/perirenal NB from
Wilms’ tumor at the time of diagnosis. Recognition of its characteristic features, which are distinctive from its adrenal
counterpart, is helpful to guide to the correct diagnosis and proper treatment. However, due to its rarity with less than
100 cases described in English literatures, the characteristics of primary intrarenal/perirenal NB have not been widely
studied. The authors, therefore, report this case of primary intrarenal/perirenal NB, which occurred in right kidney of
a 5-year-old Thai girl in order to illustrate the characteristic features of this tumor. To the authors’ knowledge, this case is
the first case of primary intrarenal/perirenal NB that has been reported in Thailand.
Keywords : Neuroblastoma, Intrarenal neuroblastoma, Perirenal neuroblastoma
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