Precancer
Carcinoma in situ (CIS) is an early form of cancer that is defined by the absence of invasion of tumor cells into the surrounding tissue, usually before penetration through the basement membrane. In other words, the neoplastic cells proliferate in their normal habitat, hence the name "in situ" (from the Latin for "in its place"). For example, carcinoma in situ of the skin, also called Bowen's disease, is the accumulation of neoplastic epidermal cells within the epidermis only, that has failed to penetrate into the deeper dermis.
For this reason, CIS will usually not form a tumor. Rather, the lesion is flat (in the skin, cervix, etc.) or follows the existing architecture of the organ (in the breast, lung, etc.). Some CIS, however, do form tumors, such as in the colon (polyps), in the bladder (pre-invasive papillary cancer), or in the breast (more properly called ductal carcinoma in situ).
Many forms of invasive carcinoma (the most common form of cancer) originate after progression of a CIS lesion. Therefore, CIS is considered a precursor or incipient form of cancer that may, if left untreated long enough, transform into a malignant neoplasm.
When explaining a laboratory report to a patient, most doctors will refer to CIS as "pre-cancer", not cancer. However, because most forms of CIS have a high probability of progression into invasive carcinoma, doctors will usually recommend that the lesion be completely removed. Therefore, CIS is usually treated in much the same way as a malignant tumor.
In the TNM classification, carcinoma in situ is reported as TisN0M0 (Stage 0).

This is an excerpt from the article Precancer from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.
The article Precancer at en.wikipedia.org was accessed 31 times in the last 30 days. (as of: 07/12/2013)
Images on Precancer
Preview image:
Original:
Search results from Google and Bing
4
9
1
Actinic Keratosis (AK) - SkinCancer.org
THE MOST COMMON Precancer. Scaly or crusty growths (lesions) caused by damage from the sun's ultraviolet (UV) rays, actinic keratosis (AK) is also ...
www.skincancer.org/skin-cancer-information/actinic-keratosis
1
>30
2
Precancerous condition - Wikipedia, the free encyclopedia
A Precancerous condition (or premalignant condition) is a generalized state associated with a significantly increased risk of cancer. If left untreated, these ...
en.wikipedia.org/wiki/Precancerous_condition
2
>30
3
Finding cervical pre-cancers - American Cancer Society
May 2, 2013 ... If a pre-cancer is found, it can be treated, stopping cervical cancer before it really starts. Since no HPV vaccine provides complete protection ...
www.cancer.org/cancer/cervicalcancer/moreinformation/cervicalcancerpreventionandearlydetection/cervical-cancer-prevention-and-early-detection-find-pre-cancer-changes
3
>30
4
precancer - Medical Dictionary - The Free Dictionary
pre·can·cer (pr k n s r). n. A lesion from which a malignant tumor is presumed to develop in a significant number of instances and that may or may not be ...
medical-dictionary.thefreedictionary.com/precancer
5
>30
5
There, I Said It: I Have Pre-Cancer | The Conversation
Jun 29, 2012 ... Again, I had to Google it – CIN is basically pre-cancer, the higher the number, the more developed the calls are. The nurses at the hospital ...
www.theconversation.tv/wellness/there-i-said-it-i-have-pre-cancer/
6
>30
6
What Does it Mean if I Have Precancerous Cells?
Jan 9, 2013 ... What does Precancerous mean? Do Precancerous cells always become cancerous? How are these cells treated? What would happen if she ...
lungcancer.about.com/b/2013/01/09/what-does-it-mean-if-i-have-precancerous-cells.htm
7
>30
7
Cervical cancer and pre-cancer cervical growths require single HPV ...
Sep 14, 2012 ... Human papillomavirus (HPV) has long been implicated in cervical cancer, but details of how it happens have remained a mystery.
www.med.wisc.edu/news-events/cervical-cancer-and-pre-cancer-cervical-growths-require-single-hpv-protein/38813
8
>30
8
What does pre-cancer cells mean? - Yahoo! Answers
THe cells are "different" then the normal cells and have the potential to turn cancerous. I so totally disagree with the person who said there is no ...
answers.yahoo.com/question/index?qid=20070308212011AAvWee1
9
>30
9
Precancers - American Association for Cancer Research
Founded in 1907, the American Association for Cancer Research is a professional society of more than 24000 laboratory, translational, and clinical scientists ...
www.aacr.org/page1201.aspx
10
>30
10
Precancer of the human cervix.
The tumour biology of cervical Precancer is unusual. A large variety of individually distinct forms crudely divided into slight, moderate, severe dysplasia and ...
www.ncbi.nlm.nih.gov/pubmed/10489629
Search results for "Precancer"
Google: approx. 231.000
Precancer in science
Pre-Cancerous Conditions - University of Michigan Comprehensive ...
HPV, human papillomavirus, pap test, CIN, SIN, carcinoma in situ and VAIN are conditions which, if left untreated, can lead to cervical cancer.
Prevention & Screening - University of Michigan Comprehensive ...
University of Michigan Comprehensive Cancer Center ... One of the most common and trustworthy tests used to detect Precancerous and cancerous gynecologic ...
Pre-Cancer Genomics Group - University of Leeds
Pre-Cancer Genomics Research Group. ... (formerly part of Leeds Institute of Molecular Medicine), part of the University of Leeds, we are a multidisciplinary team ...
Cervical cancer and pre-cancer cervical growths require single HPV ...
Sep 14, 2012 ... Now researchers at the University of Wisconsin-Madison have ... HPV protein is required for cervical cancer and even pre-cancer growths in the ...
Anal pre-cancer - The University of Sydney
Mar 24, 2011 ... Anal pre-cancer (anal intraepithelial neoplasia). What is anal intraepithelial neoplasia (AIN)? AIN is the name given to the appearance of ...
Oral Precancer - Malmö University - Malmö högskola
Leukoplakia, the commonest form of oral premalignancy occurs 6 times more frequently in smokers than in non-smokers. Oral leukoplakia is also associated ...
Barrett's Esophagus - The University of Chicago Medicine
The University of Chicago Center for Esophageal Diseases offers the most ... Barrett's esophagus is a Precancerous condition that develops as a result of GERD ...
"Cultural and dietary risk factors of oral cancer and precancer - A bri ...
This is an update on cultural and dietary risk factors for oral Precancer and cancer. ... University of Malaya, Kuala Lumpur for paper titled 'Oral Cancer Database ...
"Oral cancer and precancer research in Malaysia - the database and ...
Oral cancer and Precancer research in Malaysia - the database and tissue resource bank. Rosnah Binti Zain, University of Malaya ...
Jim Ayers Institute for Precancer Detection and Diagnosis ...
Jim Ayers Institute for Precancer Detection and Diagnosis ... (NCI) National Comprehensive Cancer Center (NCCN) Vanderbilt University Medical Center
Books on the term Precancer
Lower Genital Tract Precancer: Colposcopy, Pathology and Treatment
Lower Genital Tract Precancer: Colposcopy, Pathology and Treatment
Albert Singer, John M. Monaghan, Swee Chong Quek, 2008
The new Second Edition of Lower Genital Tract Precancer has been extensively revised and expanded to provide a definitive and contemporary reference on this subject.
Precancer: The Beginning and the End of Cancer
Precancer: The Beginning and the End of Cancer
Jules J. Berman, 2011
This book begins by explaining why it has been so difficult to cure cancers, followed by a review of Precancer biology, with descriptions of the most common Precancer lesions.
Oral Precancer: Diagnosis and Management of Potentially Malignant ...
Oral Precancer: Diagnosis and Management of Potentially Malignant ...
Peter Thomson, 2012
In addition to providing a scientific and evidence-based survey of the disparate sources of oral Precancer research, this book presents practical information for dental practitioners.
Preventive Strikes: Women, Precancer, and Prophylactic Surgery
Preventive Strikes: Women, Precancer, and Prophylactic Surgery
Ilana Löwy, 2010
Preventive Strikes aims to improve our understanding of professional, social, and cultural responses to cancer in the twenty-first century and to inform our reflections about how values are incorporated into routine medical practices.Ilana ...
Development of Google searches


Blog posts on the term
Precancer
Sen. Mike Carrell dies of complications from pre-cancer treatment :: The Capitol Record | News, background and notes on Washington state government.
Sen. Mike Carrell (R-Lakewood) Republican Sen.
capitolrecord.tvw.org/2013/05/sen-mike-carrell-dies-of-complications-from-pre-cancer-treatment/
HysterSisters: Pre-Cancer: Just had a LEEP - feeling anxious and scared!
]]> ]]> ]]>Hi Sisters! Well here I thought that having my SAH 4 years ago would solve all of these type problems! Boy was I wrong. I had the SAH because of Fibroids and had never had an abnormal PAP all of my 45 years of life! So my doc and I thought it would be best to leave the cervix and any other body parts that looked viable - and he did.
hystersisters01.blogspot.com/2013/07/pre-cancer-just-had-leep-feeling.html
Pre-cancer of the Skin | Carolinas Dermatology Group, P.A.
Carolinas Dermatology Group provides complete dermatologic services for the diagnosis and treatment of pre-cancer of the skin in people of all ages. .
carolinasdermatologygroup.com/medical-dermatology/pre-cancer-of-the-skin/
Pre-cancer? | mschaeferdc
Wife, Mother, Friend and Cancer Thriver - Loving Life!
mschaeferdc.wordpress.com/2013/01/03/pre-cancer/
I HAVE PRE-CANCER, there I said it!!! |
My fashion style on a budget (Atlanta Mom Blogger) (by Genae)
fashionjunkey.wordpress.com/2013/05/15/i-have-pre-cancer-there-i-said-it/
Who has her pre-cancer hair back?! This girl!! | Every Day is a Blessing
you can sit and ask why or get busy living
mommybeatscancer.com/2013/05/16/hair-comes-back-post-cancer/
Histological Typing of Cancer and Precancer of the Oral Mucosa « Oral Cancer Treatment and Natural Remedies
Histological Typing of Cancer and Precancer of the Oral Mucosa. Discussed in detail. Also, learn about the effective natural remedies that completely cure the...
oralcancerguide.org/?p=2516
VIPI - LVMPD Miserably Fails to Help a Female Disabled Combat Veteran and a Pre-Cancer Victim
TweetPR Contact for Veterans In Politics International: Endeavor Media Group ATTN: Andre’ Haynes Phone: (702) 305-0973 E-Mail: andre. haynes@emgnv.
veteransinpolitics.org/?p=310
Smoking linked with cervical pre-cancer — Irish Medical Times
www.imt.ie/clinical/2013/03/smoking-linked-with-cervical-pre-cancer.html
'Downloads Lower Genital Tract Precancer book', amberdemoss's blog message on Netlog
Netlog is a community where users can keep in touch with and extend their social network. On Netlog, you can create your own web page with a blog, upload pictures, watch videos, find events and play games.
en.netlog.com/amberdemoss/blog/blogid=25183013
123