Items tagged “mammography”

12 results found

Breast imaging-reporting and data system (BI-RADS) assessment category 2

BI-RADS 2 is a benign category in the breast imaging reporting and data system. A finding placed in this category should have essentially a 100% chance of being benign.  Examples of such lesions include: calcified fibroadenomas multiple secretory calcifications fat-containing lesions such as...

Frontal oblique approach mammography

Background Mammographic technique is very important to obtain diagnostic mammograms, to reduce the number of false negatives and to increase the sensitivity of the procedure. As widely noted in literature, most breast pathology occurs in the upper outer quadrant and is very important that this ...

Tent sign (breast)

The tent sign is a term referring to a characteristic appearance of the posterior edge of the breast parenchyma when a mass (usually an infiltrating lesion) causes its retraction and forms an inverted "V" that resembles the tip of a circus tent. The detection of a "tent sign" is facilitated by ...

Tangential views

Tangential views are useful to differentiate intracutaneous radiopaque particles in a tattoo from intraparenchymal microcalcifications. Mammographic findings close to the skin such as masses, microcalcifications, skin dimpling or shaded areas always pose a problem of differential diagnosis. Va...

Mediolateral oblique view

The mediolateral oblique (MLO) view is one of standard mammographic views. It is the most important projection as it allows to depict most breast tissue.  Adequacy The representation of the pectoral muscle on the MLO view is a key component in assessing the adequacy of patient positioning and ...

Lateromedial oblique view

A lateral-medial oblique (LMO) view is a type of supplementary mammographic view.  The advantage of performing the lateromedial view is to depict lesions located far medio-posteriorly visible on the CC view only, or to depict palpable lesions in the inner quadrant not seen on mammography. This...

Forbidden areas in mammography

In breast imaging, forbidden, check or review areas are zones that, according to Tabár, require special attention in mammographic interpretation. These are: on a mediolateral oblique (MLO) view the "milky way" (retromammary fat): a 3-4 cm wide band parallel to the edge of the pectoral muscle ...

Contrast enhanced mammography

Contrast enhanced mammography (CEM) is a complementary breast imaging modality. A finite number of sequential images are obtained with X-ray beam produced at a high energy, above the K-edge of Iodine, and with an intravenous non-ionic Iodine contrast agent  injected between pre and post contrast...

Pectoralis major muscle

The pectoralis major muscle is a muscle of the pectoral region, overlying the anterior chest wall but is considered an upper limb muscle due to its function.  Summary origin sternal part: sternum and superior six costal cartilages clavicular part: medial half of the clavicle insertion: late...

Double spot compression view

A double spot compression view is obtained by focal compression of both sides of the breast to produce higher spatial and contrast resolution. This is made possible due to the increased amount of breast thinning and a significant decreased incidence of blurring because of decreased exposure time...

Breast within a breast sign

The breast within a breast sign refers to the common mammographic appearance of breast hamartomas (fibroadenolipomas). Since these benign lesions are well-circumscribed and contain a mixture of fibrous, glandular and fatty tissue (just like normal breast), it is not surprising that they appear v...

Inframammary fold

The inframammary fold is the anatomical boundary formed at the inferior border of the breast, where it joins with the chest. In mammography, it is an important landmark to identify on the mediolateral oblique view to assess image quality.

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