By A M A de Schepper

ISBN-10: 3540248099

ISBN-13: 9783540248095

ISBN-10: 3540307923

ISBN-13: 9783540307921

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38 38 39 42 . . . . . . . . . . . . . . 1 Introduction The imaging evaluation of a patient with a suspected soft tissue tumor requires a methodical approach that recognizes the benefits and limitations of the numerous imaging techniques that are available today. Consideration must be given to the financial costs and invasiveness of each technique balanced against the diagnostic reward. The temptation to routinely employ every technique in all patients should be resisted.

Absence of flow was found to be nonspecific, but occurred only in benign lesions such as lipoma, neurofibroma, and cysts [32]. Solid lesions may show increased blood flow. High-frequency Doppler shifts have been described in highgrade malignant bone tumors with an associated soft tissue mass (Figs. 6) [23] and in soft tissue Ewing’s sarcoma, rhabdomyosarcoma (Fig. 1), synovial sarcoma, myxofibrosarcoma (formerly “malignant fibrous histiocytoma”), and other soft tissue tumors (Fig. 2) [17, 22, 29, 32, 33, 40], but there may be overlap with certain benign solid soft tissue tumors (Figs.

As such, color Doppler-controlled needle biopsy assists in making the diagnosis of malignancy with an accuracy of 97% and of 94% for the diagnosis of soft tissue sarcoma. These results are comparable with those of incisional biopsy [39]. Absence of intratumoral blood flow may be real, or it may indicate that flow velocities present are below the minimal threshold of detection [17, 20, 22]. Furthermore, because the tumor vessels are microscopic, absence of flow may be due to sampling errors in large, heterogeneous tumors [22].

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Imaging of soft tissue tumors by A M A de Schepper

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