Magnetic resonance appearance of fibromatosis |
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| Authors: | Mark J Kransdorf James S Jelinek Richard P Moser Jr Joseph A Utz MD Terry M Hudson MD Joseph Neal B Hudson Berrey |
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| Institution: | (1) Department of Radiology, Walter Reed Army Medical Center, Washington, D.C., USA;(2) Department of Radiologic Pathology, Armed Forces Institute of Pathology, Washington, D.C., USA;(3) Department of Soft Tissue Pathology, Armed Forces Institute of Pathology, Washington, D.C., USA;(4) Department of Orthopedic Surgery, Walter Reed Army Medical Center, Washington, D.C., USA;(5) Department of Radiology and Nuclear Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA;(6) Department of Radiology, Penn State University, The Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA;(7) Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA;(8) Department of Radiologic Pathology, Armed Forces Institute of Pathology, 20306-6000, Washington, D.C., USA;(9) Present address: Drs. Mori, Bean and Brooks PA, 3599 University Boulevard South, Jacksonville, FL, USA |
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| Abstract: | We reviewed retrospectively the magnetic resonance (MR) images of 14 soft-tissue lesions of fibromatosis (desmoid tumors) encountered in 11 patients. The lesions were typically inhomogeneous in texture and round to oval in configuration. Margins were well-defined in 78% of the lesions at presentation and were infiltrating in all recurrences. On T1-weighted spin echo MR images, the predominant signal intensity was either isointense or minimally hyperintense when compared with skeletal muscle. On T2-weighted MR images the predominant signal intensity was typically intermediate between skeletal muscle and subcutaneous fat or isointense to fat. Linear and curvilinear areas of decreased signal intensity were distributed throughout the lesions on both pulse sequences in 86% of cases. This pattern strongly suggested fibromatosis. Speculation concerning possible etiologies of this appearance are discussed, and the relevant literature on previously reported cases is reviewed.The opinions or assertions contained herein are the private views of the authors and are not to be construed as official or as reflecting the views of the Department of the Army, the Department of Defense, or the Uniformed Services University of the Health Sciences |
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| Keywords: | Fibromatosis Desmoid tumor Soft-tissue tumors Skeletal neoplasms Magnetic resonance imaging |
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