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A breast mass, also known as a breast lump, is a localized swelling that feels different from the surrounding tissue. [1] Breast pain , nipple discharge , or skin changes may be present. [ 1 ] Concerning findings include masses that are hard, do not move easily, are of an irregular shape, or are firmly attached to surrounding tissue.
In contrast, tissues with lower echogenicity are called "hypoechoic" and are usually represented with darker colors. Areas that lack echogenicity are called "anechoic" and are usually displayed as completely dark. [1]
T1 MRI of the same lipoma: High intensity signal mass with regions of ill-defined margins [23] Ultrasonography of a liposarcoma for comparison: In this case a heterogeneous mass consisting of an upper hyperechoic portion, corresponding to lipomatous matrix, and areas of hypoechogenicity corresponding to nonlipomatous components.
In most cases breast cancers are asymptomatic and are detected by routine clinical screening exams. In about 30% of cases a breast mass may be felt. [13] [14] The mass will not fluctuate with the menstrual period. [15] Changes to the overlying skin including dimpling, pinching, orange peel-like texture, or nipple retraction may be seen. [16]
Early warning signs of breast cancer. A breast tumor is an abnormal mass of tissue in the breast as a result of neoplasia. A breast neoplasm may be benign, as in fibroadenoma, or it may be malignant, in which case it is termed breast cancer. Either case commonly presents as a breast lump. Approximately 7% of breast lumps are fibroadenomas and ...
A change in the size or shape of the breast; Nipple discharge or nipple tenderness; the nipple may also be inverted, or pulled back into the breast; Ridges or pitting of the breast; the skin may look like the skin of an orange; A change in the way the skin of the breast, areola, or nipple looks or feels [19] such as warmth, swelling, redness or ...
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Stratification for breast cancer risk on a mammogram is based on a reporting system known as Breast Imaging-Reporting and Data System , developed by the American College of Radiology in 1993. It has five general categories of findings: mass, asymmetry, architectural distortion, calcifications, and associated features.