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Dense Breast Tissue
Dense breast tissue, also known as dense breasts, is a condition of the breasts where a higher proportion of the breasts are made up of glandular tissue and fibrous tissue than fatty tissue. Around 40–50% of women have dense breast tissue and one of the main medical components of the condition is that mammograms are unable to differentiate tumorous tissue from the surrounding dense tissue. This increases the risk of late diagnosis of breast cancer in women with dense breast tissue. Additionally, women with such tissue have a higher likelihood of developing breast cancer in general, though the reasons for this are poorly understood. Definition Dense breast tissue is defined based on the amount of glandular and fibrous tissue as compared to the percentage of fatty tissue. The current mammography classifications split up the density of breasts into four categories. Approximately 10% of women have almost entirely fatty breasts, 40% with small pockets of dense tissue, 40% with even d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breasts
The breast is one of two prominences located on the upper ventral region of a primate's torso. Both females and males develop breasts from the same embryological tissues. In females, it serves as the mammary gland, which produces and secretes milk to feed infants. Subcutaneous fat covers and envelops a network of ducts that converge on the nipple, and these tissues give the breast its size and shape. At the ends of the ducts are lobules, or clusters of alveoli, where milk is produced and stored in response to hormonal signals. During pregnancy, the breast responds to a complex interaction of hormones, including estrogens, progesterone, and prolactin, that mediate the completion of its development, namely lobuloalveolar maturation, in preparation of lactation and breastfeeding. Humans are the only animals with permanent breasts. At puberty, estrogens, in conjunction with growth hormone, cause permanent breast growth in female humans. This happens only to a much lesse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Case–control Study
A case–control study (also known as case–referent study) is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute. Case–control studies are often used to identify factors that may contribute to a medical condition by comparing subjects who have that condition/disease (the "cases") with patients who do not have the condition/disease but are otherwise similar (the "controls"). They require fewer resources but provide less evidence for causal inference than a randomized controlled trial. A case–control study produces only an odds ratio, which is an inferior measure of strength of association compared to relative risk. Definition The case–control is a type of epidemiological observational study. An observational study is a study in which subjects are not randomized to the exposed or unexposed groups, rather the subjects are ''observed'' in order to determine both their expos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breast Imaging
In medicine, breast imaging is a sub-speciality of diagnostic radiology that involves imaging of the breasts for screening or diagnostic purposes. There are various methods of breast imaging using a variety of technologies as described in detail below. Traditional screening and diagnostic mammography (“2D mammography”) uses x-ray technology and has been the mainstay of breast imaging for many decades. Breast tomosynthesis (“3D mammography”) is a relatively new digital x-ray mammography technique that produces multiple image slices of the breast similar to, but distinct from, CT scan, Computed Tomography (CT). Xeromammography and Galactography are somewhat outdated technologies that also use x-ray technology and are now used infrequently in the detection of breast cancer. Breast ultrasound is another technology employed in diagnosis and screening that can help differentiate between fluid filled and solid lesions, an important factor to determine if a lesion may be cancerous. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breast
The breast is one of two prominences located on the upper ventral region of a primate's torso. Both females and males develop breasts from the same embryological tissues. In females, it serves as the mammary gland, which produces and secretes milk to feed infants. Subcutaneous fat covers and envelops a network of ducts that converge on the nipple, and these tissues give the breast its size and shape. At the ends of the ducts are lobules, or clusters of alveoli, where milk is produced and stored in response to hormonal signals. During pregnancy, the breast responds to a complex interaction of hormones, including estrogens, progesterone, and prolactin, that mediate the completion of its development, namely lobuloalveolar maturation, in preparation of lactation and breastfeeding. Humans are the only animals with permanent breasts. At puberty, estrogens, in conjunction with growth hormone, cause permanent breast growth in female humans. This happens only to a much lesser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ambiguity Aversion
In decision theory and economics, ambiguity aversion (also known as uncertainty aversion) is a preference for known risks over unknown risks. An ambiguity-averse individual would rather choose an alternative where the probability distribution of the outcomes is known over one where the probabilities are unknown. This behavior was first introduced through the Ellsberg paradox (people prefer to bet on the outcome of an urn with 50 red and 50 black balls rather than to bet on one with 100 total balls but for which the number of black or red balls is unknown). There are two categories of imperfectly predictable events between which choices must be made: risky and ambiguous events (also known as Knightian uncertainty). Risky events have a known probability distribution over outcomes while in ambiguous events the probability distribution is not known. The reaction is behavioral and still being formalized. Ambiguity aversion can be used to explain incomplete contracts, volatility in stock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People Of Color
The term "person of color" ( : people of color or persons of color; abbreviated POC) is primarily used to describe any person who is not considered "white". In its current meaning, the term originated in, and is primarily associated with, the United States; however, since the 2010s, it has been adopted elsewhere in the Anglosphere (often as person of colour), including relatively limited usage in the United Kingdom, Canada, Australia, Ireland, South Africa, and Singapore. In the United States, people of color include African Americans, Asian Americans, Pacific Islander Americans, multiracial Americans, and some Latino Americans, though members of these communities may prefer to view themselves through their cultural identities rather than color-related terminology. The term, as used in the United States, emphasizes common experiences of systemic racism, which some communities have faced. The term may also be used with other collective categories of people such as "communities o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cancer (journal)
''Cancer'' is a biweekly peer-reviewed scientific journal covering oncology. The journal was established in 1948. It is an official journal of the American Cancer Society and is published by Wiley-Blackwell on behalf of the society. The first editor-in-chief was Fred W. Stewart, who held that position until 1961. The current editor-in-chief is Suresh S. Ramalingam, and the previous one was Fadlo R. Khuri. ''Cancer Cytopathology'' was published as a section from 1997 until 2008, when it was split into a separate journal. Abstracting and indexing The journal is abstracted and indexed in: According to the ''Journal Citation Reports'', the journal has a 2015 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 5.649, ranking it 26th out of 211 journals in the category ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JAMA Internal Medicine
''JAMA Internal Medicine'' is a monthly peer-reviewed medical journal published by the American Medical Association. It was established in 1908 as the ''Archives of Internal Medicine'' and obtained its current title in 2013. It covers all aspects of internal medicine, including cardiovascular disease, geriatrics, infectious disease, gastroenterology, endocrinology, allergy, and immunology. The editor in chief is Rita F. Redberg (University of California, San Francisco). According to ''Journal Citation Reports'', the journal's 2021 impact factor is 44.409, ranking it 7th out of 172 journals in the category "Medicine, General & Internal". Naming history Abstracting and indexing The journal is abstracted and indexed in Index Medicus/MEDLINE/PubMed. See also * List of American Medical Association journals A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College, an undergraduate division of the Je ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nancy Cappello
Nancy Cappello ( Marcucci; October 30, 1952 – November 15, 2018) was an American breast cancer activist who was known for her campaign to improve disclosure on the limitations of mammography and the difficulty in identifying cancer for those with dense breast tissue. She worked as a special education teacher in her hometown of Waterbury, Connecticut, and later as an educational administrator in the Connecticut state department. After being diagnosed with breast cancer in 2003, Cappello started an organization called ''Are You Dense?'' in order to improve notification laws for women with dense breasts, as it was due to not being informed that her cancer had not been identified sooner through non-mammogram methods. By 2019, 37 U.S. states had passed a breast density inform law as she had advocated, along with a federal law being passed to update the notification rules in February 2019. Early life and education Cappello was born in Waterbury, Connecticut, on October 30, 1952, to S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of The American College Of Radiology
The ''Journal of the American College of Radiology'' (sometimes abbreviated JACR) is a monthly peer-reviewed medical journal covering radiology. It was established in 2004 and is published by Elsevier on behalf of the American College of Radiology, of which it is the official journal. The journal's founding editor-in-chief was Bruce J. Hillman (University of Virginia) with Ruth C. Carlos (University of Michigan) succeeding Hillman on January 1, 2019. It is sometimes called the "blue journal". According to the ''Journal Citation Reports'', the journal has a 2020 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 5.532. References External links *{{Official website, http://www.jacr.org/ Radiology and medical imaging journals Publications established in 2004 Elsevie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Workshop On Digital Mammography
International is an adjective (also used as a noun) meaning "between nations". International may also refer to: Music Albums * ''International'' (Kevin Michael album), 2011 * ''International'' (New Order album), 2002 * ''International'' (The Three Degrees album), 1975 *''International'', 2018 album by L'Algérino Songs * The Internationale, the left-wing anthem * "International" (Chase & Status song), 2014 * "International", by Adventures in Stereo from ''Monomania'', 2000 * "International", by Brass Construction from ''Renegades'', 1984 * "International", by Thomas Leer from ''The Scale of Ten'', 1985 * "International", by Kevin Michael from ''International'' (Kevin Michael album), 2011 * "International", by McGuinness Flint from ''McGuinness Flint'', 1970 * "International", by Orchestral Manoeuvres in the Dark from '' Dazzle Ships'', 1983 * "International (Serious)", by Estelle from '' All of Me'', 2012 Politics * Political international, any transnational organization of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parenchyma
Parenchyma () is the bulk of functional substance in an animal organ or structure such as a tumour. In zoology it is the name for the tissue that fills the interior of flatworms. Etymology The term ''parenchyma'' is New Latin from the word παρέγχυμα ''parenchyma'' meaning 'visceral flesh', and from παρεγχεῖν ''parenchyma'' meaning 'to pour in' from παρα- ''para-'' 'beside' + ἐν ''en-'' 'in' + χεῖν ''chyma'' 'to pour'. Originally, Erasistratus and other anatomists used it to refer to certain human tissues. Later, it was also applied to plant tissues by Nehemiah Grew. Structure The parenchyma is the ''functional'' parts of an organ (anatomy), organ, or of a structure such as a tumour in the body. This is in contrast to the Stroma (animal tissue), stroma, which refers to the ''structural'' tissue of organs or of structures, namely, the connective tissues. Brain The brain parenchyma refers to the functional tissue in the brain that is made up of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
