Journal article
MRI and CT of Low-Grade Fibromyxoid Sarcoma in Children: A Report From Children's Oncology Group Study ARST0332
American journal of roentgenology (1976), Vol.205(2), pp.414-420
08/2015
DOI: 10.2214/AJR.14.13972
PMCID: PMC4570741
PMID: 26204295
Abstract
The purpose of this article is to determine the MRI and CT features of low-grade fibromyxoid sarcoma in children.
We retrospectively analyzed images of 11 pediatric patients with low-grade fibromyxoid sarcoma from a phase 3 clinical trial of nonrhabdomyosarcoma soft-tissue sarcoma (Children's Oncology Group Protocol ARST0332). MRI and CT were performed in 10 and four patients, respectively. Location, size, margin, and composition on imaging were correlated with pathologic findings.
Tumors were located in the extremities in nine patients, and one tumor each was located in the tongue and lung. Tumors were deep in seven patients and superficial in four patients. All tumors were well defined, solitary, and nonmetastatic at presentation. Tumors were complex solid-cystic in eight patients and completely solid in three patients. On T1-weighted images, all tumors had at least some areas hypointense to muscles, and six had a split-fat sign. On STIR or T2-weighted images, eight tumors had areas hypointense to adjacent muscle, and eight tumors had fluid signal intensity. On contrast-enhanced MRI studies, eight tumors had thick enhancing internal septations, and three had peripheral nodular gyriform enhancement. When we correlated imaging to pathologic findings, areas with hypointense signal intensity on both T1- and T2-weighted images were likely related to fibrous component; areas with fluid signal intensity on T2-weighted images were likely related to myxoid component. On CT, all four tumors were hypodense to muscle, and one tumor showed punctate calcific foci.
Low-grade fibromyxoid sarcoma is hypodense to muscle on CT. MRI may identify both fibrous and myxoid components of this rare pediatric soft-tissue sarcoma.
Details
- Title: Subtitle
- MRI and CT of Low-Grade Fibromyxoid Sarcoma in Children: A Report From Children's Oncology Group Study ARST0332
- Creators
- Kiran Sargar - 2 Present address: Department of Radiology, Mallinckrodt Institute of Radiology, St Louis, MOSimon C Kao - 1 Department of Radiology, University of Iowa College of Medicine, 200 Hawkins Dr, Iowa City, IA 52242Sheri L Spunt - 3 Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CADouglas S Hawkins - 4 Department of Pediatrics, Seattle Children's Hospital, Seattle, WADavid M Parham - 5 Department of Pathology and Laboratory Medicine, Children's Hospital of Los Angeles and University of Southern California, Keck School of Medicine, Los Angeles, CACheryl Coffin - 6 Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, TNM Beth McCarville - 7 Department of Radiological Sciences, St. Jude Children's Research Hospital, Memphis, TN
- Resource Type
- Journal article
- Publication Details
- American journal of roentgenology (1976), Vol.205(2), pp.414-420
- DOI
- 10.2214/AJR.14.13972
- PMID
- 26204295
- PMCID
- PMC4570741
- NLM abbreviation
- AJR Am J Roentgenol
- ISSN
- 0361-803X
- eISSN
- 1546-3141
- Publisher
- United States
- Grant note
- CA98543 / NCI NIH HHS U10 CA098413 / NCI NIH HHS U10 CA98413 / NCI NIH HHS U10 CA180886 / NCI NIH HHS U10 CA098543 / NCI NIH HHS
- Language
- English
- Date published
- 08/2015
- Academic Unit
- Radiology; Stead Family Department of Pediatrics
- Record Identifier
- 9984051766702771
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