Articles

Articles are a collaborative effort to provide a single canonical page on all topics relevant to the practice of radiology. As such, articles are written and edited by countless contributing members over a period of time. A global group of dedicated editors oversee accuracy, consulting with expert advisers, and constantly reviewing additions.

9 results found
Article

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...
Article

Egg shell calcification within the breast

Egg shell calcifications in the breast are benign peripheral rim like calcifications Pathology They represent calcifications secondary to fat necrosis, calcification of oil cysts. Radiographic features thin rim like calcification (< 1mm in thickness) lucent centres small to several cent...
Article

Linguine sign

The linguine sign is one of the imaging signs of intracapsular rupture of a breast implant. After implantation of a silicone or saline breast implant, a fibrous capsule (scar) forms around the implant shell. In an intracapsular rupture, the contents of the implant are contained by the fibrous s...
Article

Popcorn calcification

Popcorn calcification refers to amorphous calcifications often with rings and arcs that resemble popped corn kernels. This type of calcification may be seen in many radiological settings including 1: chondroid lesions (e.g enchondroma, chondrosarcoma) fibrous dysplasia pulmonary hamartomas d...
Article

Popcorn calcification within the breast

Popcorn calcification in the breast is the classical description for the calcification seen in involuting fibroadenomas, which as the name suggests has a pop corn like appearance.  Pathology A fibroadenoma in the long run may degenerate and calcify. Initially there are a few punctate periphera...
Article

Punctate microcalcification within the breast

Punctate microcalcifications in the breast are seen within the acini of terminal duct lobular unit Pathology Associations fibrocystic changes skin calcification skin talc rarely in DCIS (punctate, clustered, segmentally distributed) Radiographic features < 0.5 mm in size  small, roun...
Article

Stepladder sign

The stepladder sign is a sonographic sign indicating an intra-capsular breast implant rupture. It is considered the most reliable ultrasonographic finding in silicone gel breast implant intra-capsular rupture. It is identified as multiple, discontinuous, parallel, linear echoes in the lumen, and...
Article

Tattoo sign - mammogram

The tattoo sign is a feature given to describe dermal calcifications seen on mammography 1. The basis of this sign is that dermal calcifications maintain fixed relationships to one another which are reproducible with similar projections at different times. This is in contrast to intramammary cal...
Article

Tent sign

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

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