MR Imaging of Skeletal Muscle Hemangiomas

Autor: Veli Söderlund, G. Jenner, O. Brosjö, H. F. C. Bauer
Rok vydání: 1996
Předmět:
Zdroj: Acta Radiologica. 37:140-144
ISSN: 0284-1851
DOI: 10.3109/02841859609173433
Popis: Purpose: Our purpose was to evaluate how MR imaging depicts the vascular fibro-fatty structure of hemangiomas.Material and Methods: MR images of 16 histologically proven skeletal muscle hemangiomas were reviewed retrospectively in a nonblinded manner. One patient was examined at 0.5 T, 9 at 1.0 T, and 6 at 1.5 T, and the imaging protocols varied.Results: All lesions were lobulated/tubular. Signal characteristics of fat were seen in 13 lesions as lace-like thin septa within or around the tumor. All 16 studies exhibited a hyperintense signal on T2-weighted spin-echo (SE) (n=15) or T1-weighted fast fat suppressed inversion recovery SE images (n=1). Postcontrast images showed marked signal enhancement in parts of the areas, both of high and low T2-weighted signal. Surgical staging based on MR images was correct in all lesions.Conclusion: MR images display the characteristic vascular fibrofatty structure of hemangiomas and may allow correct diagnosis.
Databáze: OpenAIRE