[Magnetic resonance in the diagnosis and follow-up of soft-tissue sarcomas].
The authors analyze the advantages of MR imaging in the detection, staging and follow-up of malignant soft-tissue sarcomas. The role of MR imaging is retrospectively evaluated in 34 patients (16 men and 18 women) ranging in age from 3 to 82 years (mean: 38); 19 of them had a primary neoplasm, while the extant 15 patients were examined after surgery, and residual or recurrent tumors were present. Ten examinations were performed on an 0.5 T imager (CGR Magniscan 5000), and 27 were obtained with a 1.5 T system (Magnetom 42 SP Siemens). In all cases T1 and T2 sequences were acquired; in 3 patients T1-weighted sequences were performed after Gd-DTPA administration. In the 19 patients with primary tumors pathologic specimens were obtained. The value of MR imaging in the evaluation and characterization of soft-tissue sarcomas and its capabilities in detecting neurovascular encasement and bone involvement are discussed. Post-Gd-DTPA scans may help in the differentiation of necrotic areas from active tumors. MR diagnostic criteria of malignancy, including tissue heterogeneity and irregular margins, were not fulfilled in 3 of the studied cases.
Marano
I
I
Università degli Studi Federico II, II Facoltà di Medicina e Chirurgia, Napoli.
Brunetti
A
A
Covello
M
M
Belfiore
G
G
Giovine
S
S
Salvatore
M
M
D000367:Age Factors; D005500:Follow-Up Studies; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000295:instrumentation; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis / Q000453:epidemiology; D012189:Retrospective Studies; D012509:Sarcoma / Q000175:diagnosis* / Q000453:epidemiology; D012737:Sex Factors; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000453:epidemiology
La Risonanza Magnetica nella diagnosi e nel follow-up dei sarcomi dei tessuti molli.