Articles
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21 results found
Article
Snowstorm sign (extracapsular breast implant rupture)
The snowstorm sign on breast ultrasound imaging represents the presence of free silicone droplets mixed with breast parenchymal tissue causing characteristic homogeneously hyperechoic dense shadowing with dispersion of the ultrasound beam. It is considered the most reliable sign of extracapsular...
Article
Air-tissue interface sign - breast
Air-tissue interface sign on mammography in cases where the mass is located on the skin helps to distinguish it from intra-mammary mass so that in the skin-based lesion, due to the presence of air in the vicinity of a part of the margin, its border is pretty sharp and a narrow lucent rim around ...
Article
Eggshell calcification (breast)
Eggshell calcifications in the breast are benign peripheral rim-like calcifications.
Pathology
They are typically secondary to fat necrosis or calcification of oil cysts.
Radiographic features
thin rim-like calcification (<1 mm in thickness)
lucent centers
small to several centimeters in d...
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 that are reproducible with similar projections at different times. This is in contrast to intramammary calc...
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
Teardrop sign (intracapsular breast implant rupture)
The teardrop sign indicates an uncollapsed intracapsular breast implant rupture and is seen as a small focal invagination of the implant shell caused by a minimal concealed leak of droplets of silicone outside the shell where the two membranes contact each other. It is best appreciated by MRI.
...
Article
Subcapsular line sign (intracapsular breast implant rupture)
The subcapsular line sign is a small localized leak from a silicone implant that leads to the formation of a thin layer of silicone between the implant shell and the fibrous capsule. It represents a minimally collapsed intracapsular breast implant rupture. It is best appreciated by MRI.
Article
Stepladder sign (intracapsular breast implant rupture)
The stepladder sign is a sonographic sign indicating an intracapsular breast implant rupture. It is considered the most reliable ultrasonographic finding in silicone gel breast implant intracapsular rupture. It is identified as multiple, discontinuous, parallel, linear echoes in the lumen, and i...
Article
Salad oil sign
The salad oil sign, also referred to as the droplet sign, is an MRI sign of breast implant rupture.
It is characterized by small rounded high T2 signal foci within a breast implant and represents water droplets or small amounts of gas within the silicone. It also can be characterized as hypoint...
Article
Linguine sign (breast)
Linguine sign, also known as the wavy line sign, is one of the imaging signs of intracapsular rupture of a breast implant 4.
Pathology
After implantation of a silicone or saline breast implant, a fibrous capsule (scar) forms around the implant shell. In an intracapsular rupture, the contents o...
Article
Keyhole sign (intracapsular breast implant rupture)
The keyhole or noose sign indicates an uncollapsed intracapsular breast implant rupture seen as the focal invagination of the implant shell caused by a small concealed leak of silicone outside shell where the two membranes do not contact each other. It is best appreciated on breast MRI.
Differe...
Article
Athelia
Athelia is a rare congenital condition characterized by the absence of the nipple. This may occur unilaterally or bilaterally.
Associations
Poland syndrome
ectodermal dysplasia 2
Article
Keyhole sign (disambiguation)
The keyhole sign may refer to:
keyhole sign (intracapsular breast implant rupture) 1
keyhole sign (posterior urethral valves) 2
keyhole sign (neural exit foramina)
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 popcorn-like appearance.
Pathology
A fibroadenoma in the long run may degenerate and calcify. Initially, there are a few punctate peripher...
Article
Punctate microcalcification within the breast
Punctate microcalcifications within the breast are defined as calcific opacities <0.5 mm in diameter seen within the acini of a terminal ductal lobular unit.
Epidemiology
Associations
fibrocystic changes
skin calcification
skin talc
rarely in DCIS: punctate, clustered, segmentally distribu...
Article
Popcorn calcification (disambiguation)
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
...
Article
Leborgne's law
Leborgne's law in mammography represents a classic clinical observation where the clinical (palpable) size of a malignant breast mass commonly exceeds the radiographic one 1. The peritumoral edema and/or desmoplastic reaction are thought to be the cause of this phenomenon.
The law has been des...
Article
Stepladder sign (disambiguation)
Stepladder sign may refer to:
intracapsular breast implant rupture (ultrasound)
gas-fluid levels in obstructed small bowel (erect abdominal radiograph)
Article
Milky Way (disambiguation)
The Milky Way (disambiguation) has been used for two different radiological appearances:
Milky Way appearance on mammography
Milky Way sign in peripheral multifocal leukoencephalopathy
Article
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 ...
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