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A 34-year-old member asked:

what are the odds that after having a clear colonoscopy 17 months ago, a mass i have now is cancer?

2 doctor answers6 doctors weighed in
Dr. Joshua Garren
Radiation Oncology 24 years experience
High: Cancers tend to grow more quickly than non cancerous tumors. Therefore, if you had a clear colonoscopy 17 months ago, and you now have a tumor in your colon, the chance that the tumor is cancer is higher than if you have not had a clear colonoscopy 17 months ago.
Dr. Stephen Lloyd
Internal Medicine 46 years experience
Unlikely colon: From the time a polyp begins and it turns into cancer usually takes more than 10 years. A careful colonoscopy should prevent colon cancer for at least five years. Some doctors colonoscopies are not as careful. The measure that reflects the care is the adr (adenoma detection rate). If your doctor's adr is below 20 (or unavailable!) i would be concerned.

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A 38-year-old member asked:

How can I tell if a rash with target-like spots is cancerous?

3 doctor answers5 doctors weighed in
Dr. Padmavati Garvey
A Verified Doctoranswered
A US doctor answeredLearn more
See doctor: Target lesions usually mean erythema multiforme which can be due to allergic type reactions or infections.
A 21-year-old member asked:

Who is at risk of developing prostate cancer?

2 doctor answers6 doctors weighed in
Dr. Moez Khorsandi
Urology 27 years experience
Family history: Risk factors for prostate cancer include a family history of prostate cancer, especially your father. In addition african american males tend to have a higher incidence of prostate cancer as well. A recent study has shown a slight increase in prostate cancer in patients who take vitamin E supplements. Prostate cancer has not been linked to food products.
A 47-year-old member asked:

Besides cell phones, what are other sources of rf energy that cause cancer?

2 doctor answers5 doctors weighed in
Dr. Andrew Turrisi
Radiation Oncology 47 years experience
Proof of cell: Phone link not yet in, microwaves are relatively safe, but radiation is in the electromagnetic spectrum and is a clear cause, and u-v light is part of the spectrum causing skin cancers. All seem to demonstrate direct links to dose and time of exposure. X-rays seem to have no threshold, but very low doses are very unliklely to lead to individual harm, but to a population, a small number will.
A 40-year-old member asked:

How come there are so many new drugs but we cannot find the cure for cancer?

1 doctor answer5 doctors weighed in
Dr. Andrew Turrisi
Radiation Oncology 47 years experience
Cancer is not: One disease, or one genetic chnge, but many. Drugs are poisons with side effects, and tumors are smart enought to learn to resist. Single genetic mutations are cured with miracle drugs. Many drugs now hope to keep cancers at bay and allow you to live with the cancer rather than obliterating it. The most fearsome of cancers is glioblastoma (brain tumors) and pancreas cancer. Few baby steps only.
A 36-year-old member asked:

How can I clear my annoying house allergy?

1 doctor answer1 doctor weighed in
Dr. Jeffrey Rosch
Allergy and Immunology 49 years experience
Indoor allergens : Indoor allergens are usually dust mites, pollens, molds, cockroache, and/or animal danders. Environmental control, minimizing exposure, may be of some help as are topical/oral medication. If those are not adequate allergen immunotherapy is usually indicated. In rare extreme situations you might need ro move, but the "grass isn't always greener". Need to see board certiified allergist.

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Last updated May 6, 2015

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