Purpose Malignant rhabdoid tumor (MRT) is a rare and highly aggressive tumor that affects young children. Due to its extreme rarity, most of the available data are based on retrospective case series. To add to the current knowledge of this disease, we reviewed the patients treated for extra-cranial MRT in our institute. Materials and Methods A retrospective medical record review was conducted on children treated for pathologically confirmed extra-cranial MRT at Seoul National University Children’s Hospital between January 2003 and May 2013. Results Eleven patients (7 boys, 4 girls) were diagnosed with extra-cranial MRT at a median age of 9 months old. INI1 staining was important in the pathological confirmation. Six patients (55%) had renal MRT and five (45%) had soft tissue MRT. Five patients (45%) had metastases at diagnosis. All patients underwent chemotherapy, eight patients (73%) underwent surgery, six patients (55%) received therapeutic radiotherapy, and four patients (36%) underwent high dose chemotherapy with autologous stem cell rescue (HDCT/ASCR) with melphalan, etoposide, and carboplatin. Five patients (45%) died of disease following progression (n=3) or relapse (n=2), however, there was no treatment related mortality. The overall survival of the cohort was 53.0% and the event-free survival was 54.5% with a median follow-up duration of 17.8 months (range, 2.3 to 112.3 months). Conclusion Extra-cranial MRT is still a highly aggressive tumor in young children. However, the improved survival of our cohort is promising and HDCT/ASCR with melphalan, etoposide, and carboplatin may be a promising treatment option.
Citations
Citations to this article as recorded by
Extracranial malignant rhabdoid tumors in children: high mortality even with the help of an aggressive clinical approach Siqi Xie, Yuanyuan Fang, Yingying Yang, Lan Liu, Jianxi Bai, Sheng Lin, Bing Zhang, Yifan Fang European Journal of Pediatrics.2023; 183(2): 557. CrossRef
Infantile Extracranial Rhabdoid Tumor of the Scalp Sura Al Rawabdeh, Deifallah Alsharari, Hayat Khasawneh, Ola M. Al Waqfi, Qamar Yaser Malabeh, Hiathem Abu Alhaija, Raed Mohammad Aljubour, Hamzeh M. Alkhawaldeh, Pablo Fernandez Pe as Case Reports in Medicine.2021; 2021: 1. CrossRef
Pharmacokinetics of high-dose carboplatin in children undergoing high-dose chemotherapy and autologous stem cell transplantation with BSA-based dosing Che Ry Hong, Hyoung Jin Kang, Seol Ju Moon, Jaeseong Oh, Kyung Taek Hong, Jung Yoon Choi, Kyung-Sang Yu, Hee Young Shin Bone Marrow Transplantation.2020; 55(1): 137. CrossRef
Successful Treatment of Extra‐Renal Noncerebral Rhabdoid Tumors with VIDE Naoko Yasui, Akihiko Yoshida, Eisuke Kobayashi, Fumihiko Nakatani, Hiroshi Kawamoto Pediatric Blood & Cancer.2016; 63(2): 352. CrossRef