Download e-book for kindle: Signs in MR-Mammography by Werner A. Kaiser

By Werner A. Kaiser

Breast melanoma is the best explanation for cancer-related deaths in ladies, and its incidence has been gradually emerging in fresh a long time. This booklet describes morphologic and kinetic indicators which are very important within the research of breast MR photographs earlier than and after distinction management and in a variety of pulse sequences. it's going to aid increase the medical software of MRM in order that as many physicians as attainable could make extra exact diagnoses.

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Examples 4. Interpretation Irregular contours of a mass lesion are generally the hallmark of invasive cancers such as invasive ductal carcinoma, lobular carcinoma, and other types. Some noninvasive carcinomas may also have at least partially irregular margins. Benign lesions that may produce sign 11 are fibrosis or perifocal inflammation around a percutaneously aspirated cyst. ). It should be reemphasized that a definitive diagnosis is always based on a comprehensive analysis of all observed signs.

Definition Segmental bilateral enhancement, usually in the upper outer quadrant, showing a continuous, synchronous, symmetrical increase of signal intensity in both breasts throughout the dynamic study. 2. Diagram 50 3. Examples 4. Interpretation Bilateral, symmetrical, synchronous, continuous enhancement in the upper outer quadrant reflects the bilateral, physiologic inflow of contrast material through the lateral thoracic artery, which mainly supplies the upper outer quadrant. It is almost always a benign sign.

Examples 4. Interpretation Homogeneous contrast enhancement throughout a mass lesion is not characteristic of carcinomas. Some very small cancers may have this appearance, but most will show centripetal ring enhancement and fine peripheral spiculations. Homogeneous enhancement is far more common in benign lesions such as papilloma and myxoid fibroadenoma. A fibroadenoma is particularly likely if the lesion also has higher signal intensity than the rest of the parenchyma on the T2-weighted TSE image and does not exhibit a blooming sign.

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