Intracranial Angiomatoid Fibrous Histiocytoma with EWSR1-CREB Family Fusions: A Report of 2 Pediatric Cases.
Angiomatoid
Fibrous
Histiocytoma
Intracranial
Pediatric
Journal
World neurosurgery
ISSN: 1878-8769
Titre abrégé: World Neurosurg
Pays: United States
ID NLM: 101528275
Informations de publication
Date de publication:
06 2019
06 2019
Historique:
received:
09
11
2018
revised:
10
02
2019
accepted:
10
02
2019
pubmed:
5
3
2019
medline:
14
1
2020
entrez:
5
3
2019
Statut:
ppublish
Résumé
Intracranial angiomatoid fibrous histiocytomas (AFHs) are very rare tumors. Histologically, classical cases have been reported exclusively in adults, with myxoid variants identified only in children. Here, we report the clinical presentation, treatment, biopsy, and molecular test results for 2 children with classical intracranial AFH and combine this with a literature review of published intracranial AFH and AFH-like cases. Two young girls presenting with abnormal neurologic signs, received diagnoses of intracranial AFHs from histopathologic analysis. No myxoid features were identified. Fluorescence in situ hybridization and reverse transcriptase polymerase chain reaction testing demonstrated EWS1-ATF1 and EWS1-CREM gene fusions, respectively, verified by Sanger sequencing. Both patients underwent surgery only. The first child experienced local recurrence 5 years from initial surgery. Following a further complete resection, this patient has remained recurrence free over a subsequent 6-year follow-up period. The second patient has recently experienced local multinodular recurrence 28 months after initial surgery and is awaiting surgical re-excision. No additional chemotherapy/radiotherapy has been administered to either patient. This report describes the first 2 cases of nonmyxoid intracranial AFH in children; confirmed by molecular analysis. Our results suggest that a tumor spectrum incorporating classical and myxoid intracranial AFHs can occur in children and that gross total resection represents the treatment strategy of choice at diagnosis or following recurrence.
Sections du résumé
BACKGROUND
Intracranial angiomatoid fibrous histiocytomas (AFHs) are very rare tumors. Histologically, classical cases have been reported exclusively in adults, with myxoid variants identified only in children. Here, we report the clinical presentation, treatment, biopsy, and molecular test results for 2 children with classical intracranial AFH and combine this with a literature review of published intracranial AFH and AFH-like cases.
CASE DESCRIPTION
Two young girls presenting with abnormal neurologic signs, received diagnoses of intracranial AFHs from histopathologic analysis. No myxoid features were identified. Fluorescence in situ hybridization and reverse transcriptase polymerase chain reaction testing demonstrated EWS1-ATF1 and EWS1-CREM gene fusions, respectively, verified by Sanger sequencing. Both patients underwent surgery only. The first child experienced local recurrence 5 years from initial surgery. Following a further complete resection, this patient has remained recurrence free over a subsequent 6-year follow-up period. The second patient has recently experienced local multinodular recurrence 28 months after initial surgery and is awaiting surgical re-excision. No additional chemotherapy/radiotherapy has been administered to either patient.
CONCLUSIONS
This report describes the first 2 cases of nonmyxoid intracranial AFH in children; confirmed by molecular analysis. Our results suggest that a tumor spectrum incorporating classical and myxoid intracranial AFHs can occur in children and that gross total resection represents the treatment strategy of choice at diagnosis or following recurrence.
Identifiants
pubmed: 30831299
pii: S1878-8750(19)30518-2
doi: 10.1016/j.wneu.2019.02.107
pii:
doi:
Substances chimiques
Cyclic AMP Response Element-Binding Protein
0
RNA-Binding Protein EWS
0
Types de publication
Case Reports
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
113-119Informations de copyright
Crown Copyright © 2019. Published by Elsevier Inc. All rights reserved.