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MR imaging of soft-tissue hemangiomas: correlation with pathologic findings
E K Cohen1, H Y Kressel, T Perosio
1Department of Radiology, David W. Devon Medical Imaging Center, Hospital of the University of Pennsylvania, Philadelphia 19104.
AJR. American Journal of Roentgenology
|May 1, 1988
Summary
Magnetic resonance imaging (MRI) can identify soft-tissue hemangiomas. Specific MRI patterns correlate with histopathology, aiding in the recognition of these vascular tumors.
Area of Science:
- Radiology
- Pathology
- Oncology
Background:
- Soft-tissue hemangiomas are benign vascular tumors.
- Previous studies have described their appearance on MRI, but lacked histopathologic correlation.
Purpose of the Study:
- To correlate Magnetic Resonance (MR) imaging findings with histopathologic features of intramuscular soft-tissue hemangiomas.
- To improve the understanding of the MR appearance of these lesions.
Main Methods:
- Five patients with intramuscular soft-tissue hemangiomas underwent MRI on a 1.5-T system using spin-echo (SE) sequences.
- Images were acquired in orthogonal planes with short and long repetition time/echo time (TR/TE) sequences.
- Surgical specimens were obtained for gross and histopathologic examination and comparison with MR findings.
Main Results:
- A striated-septated configuration on MRI correlated with endothelial-lined vascular channels.
- High signal intensity on long-SE sequences (TE > 75 msec) indicated the presence of fibrous and/or fatty linear strands within the hemangioma.
Conclusions:
- The characteristic MR imaging pattern of soft-tissue hemangiomas can be identified.
- Understanding this pattern aids in the accurate recognition and diagnosis of intramuscular soft-tissue hemangiomas.