Inflammatory Myofibroblastic Tumors in Children: A Clinical Retrospective Study on 19 Cases

Background: Inflammatory myofibroblastic tumor (IMFT) is a rare neoplasm mainly affecting children and young adults. We conducted a retrospective study to evaluate the clinical features and treatment alternatives of childhood inflammatory myofibroblastic tumors.Methods: A total of 19 patients who we...

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Main Authors: Min Da, Bo Qian, Xuming Mo, Cheng Xu, Haiyan Wu, Bin Jiang, Wei Peng, Jirong Qi, Jian Sun, Kaihong Wu
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-07-01
Series:Frontiers in Pediatrics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fped.2021.543078/full
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author Min Da
Bo Qian
Xuming Mo
Cheng Xu
Haiyan Wu
Bin Jiang
Wei Peng
Jirong Qi
Jian Sun
Kaihong Wu
author_facet Min Da
Bo Qian
Xuming Mo
Cheng Xu
Haiyan Wu
Bin Jiang
Wei Peng
Jirong Qi
Jian Sun
Kaihong Wu
author_sort Min Da
collection DOAJ
description Background: Inflammatory myofibroblastic tumor (IMFT) is a rare neoplasm mainly affecting children and young adults. We conducted a retrospective study to evaluate the clinical features and treatment alternatives of childhood inflammatory myofibroblastic tumors.Methods: A total of 19 patients who were pathologically diagnosed with IMT between December 2008 and October 2018 were included. Collected data were demographic information, main complaints, tumor characteristics, treatment, pathological results, immunohistochemical analysis, and prognosis.Results: The male/female ratio was 13:6. The mean age at disease onset was 44.9 ± 33.9 months (range 4 to 111 months). The mean tumor size was 6.5 ± 4.0 cm (range 1.2 to 17.0 cm). The most common site was the abdomen (13/19). The most commonly used detection tool was CT. Eleven patients (57.9%) had aggressive tumor growth, including eight receiving extensive resection and three receiving palliative resection due to high local invasiveness and postoperative chemotherapy. Eight cases whose tumors were completely enveloped received complete resection. Immunohistochemistry was performed for 17 patients and ALK positivity was found in 11 patients. Despite three children lost to follow-up, sixteen patients were followed up for 6 to 132 months (average 63.9 months, median 66 months). Of which, twelve children survived with no evidence of IMT, and four cases (21%) showed local recurrences (two of them died). No distant metastasis was detected.Conclusions: IMT is rare in children with various locations, mostly appearing in the abdomen. Whether the tumor could be completely removed, the location and the invasiveness of surrounding tissues might be highly prognosis-related.
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spelling doaj.art-90db00d761d340b39a80cd592ad8ab4d2022-12-21T17:59:58ZengFrontiers Media S.A.Frontiers in Pediatrics2296-23602021-07-01910.3389/fped.2021.543078543078Inflammatory Myofibroblastic Tumors in Children: A Clinical Retrospective Study on 19 CasesMin Da0Bo Qian1Xuming Mo2Cheng Xu3Haiyan Wu4Bin Jiang5Wei Peng6Jirong Qi7Jian Sun8Kaihong Wu9Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Pathology, Children's Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of General Surgery, Children's Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, ChinaBackground: Inflammatory myofibroblastic tumor (IMFT) is a rare neoplasm mainly affecting children and young adults. We conducted a retrospective study to evaluate the clinical features and treatment alternatives of childhood inflammatory myofibroblastic tumors.Methods: A total of 19 patients who were pathologically diagnosed with IMT between December 2008 and October 2018 were included. Collected data were demographic information, main complaints, tumor characteristics, treatment, pathological results, immunohistochemical analysis, and prognosis.Results: The male/female ratio was 13:6. The mean age at disease onset was 44.9 ± 33.9 months (range 4 to 111 months). The mean tumor size was 6.5 ± 4.0 cm (range 1.2 to 17.0 cm). The most common site was the abdomen (13/19). The most commonly used detection tool was CT. Eleven patients (57.9%) had aggressive tumor growth, including eight receiving extensive resection and three receiving palliative resection due to high local invasiveness and postoperative chemotherapy. Eight cases whose tumors were completely enveloped received complete resection. Immunohistochemistry was performed for 17 patients and ALK positivity was found in 11 patients. Despite three children lost to follow-up, sixteen patients were followed up for 6 to 132 months (average 63.9 months, median 66 months). Of which, twelve children survived with no evidence of IMT, and four cases (21%) showed local recurrences (two of them died). No distant metastasis was detected.Conclusions: IMT is rare in children with various locations, mostly appearing in the abdomen. Whether the tumor could be completely removed, the location and the invasiveness of surrounding tissues might be highly prognosis-related.https://www.frontiersin.org/articles/10.3389/fped.2021.543078/fullinflammatory myofibroblastic tumorchildrenimmunohistochemistryrecurrencesurgery
spellingShingle Min Da
Bo Qian
Xuming Mo
Cheng Xu
Haiyan Wu
Bin Jiang
Wei Peng
Jirong Qi
Jian Sun
Kaihong Wu
Inflammatory Myofibroblastic Tumors in Children: A Clinical Retrospective Study on 19 Cases
Frontiers in Pediatrics
inflammatory myofibroblastic tumor
children
immunohistochemistry
recurrence
surgery
title Inflammatory Myofibroblastic Tumors in Children: A Clinical Retrospective Study on 19 Cases
title_full Inflammatory Myofibroblastic Tumors in Children: A Clinical Retrospective Study on 19 Cases
title_fullStr Inflammatory Myofibroblastic Tumors in Children: A Clinical Retrospective Study on 19 Cases
title_full_unstemmed Inflammatory Myofibroblastic Tumors in Children: A Clinical Retrospective Study on 19 Cases
title_short Inflammatory Myofibroblastic Tumors in Children: A Clinical Retrospective Study on 19 Cases
title_sort inflammatory myofibroblastic tumors in children a clinical retrospective study on 19 cases
topic inflammatory myofibroblastic tumor
children
immunohistochemistry
recurrence
surgery
url https://www.frontiersin.org/articles/10.3389/fped.2021.543078/full
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