Zachary M. Kilpatrick

As a general rule, no. However, there are a couple of open systems that are exceptional. The technology is changing all the time. The key is the radiologist reading...fellowship training is key.

All the best.

There is no known minimal dose of fetal harm. However, the dose of hand X-rays are minimal and you should be shielded and the baby should be fine. Another option is to wait or even an MRI.

All the best.

Almost certainly not. The environment constantly emits radiation to an estimated effective dose of 3/Sv/yr. A 2-view chest X-ray has an effective dose of up to 0.1 mSv. Cross country air travel has a 0304 mSv effective dose. So, a chest X-ray here and there is not harmless, but there is not conclusive that directly links diagnostic X-rays to the development of cancer later in life. In almost every instance, the benefits far outweigh the risks. All the best and hope your son is doing well.

Please note that I'm not a radiation oncologist, but, to my knowledge, radiation therapy, in its traditional form, has essentially no major role in the treatment of liver cancer. Catheter embolization with yttrium-90 has a very limited role. Basically, radiation therapy does not regenerate cells....it kills them via splitting DNA....applicable to cancer and/or normal cells.

Thank you and all the best.

CT contrast is an iodine based compound that attenuates the xray beam to create its effect. MRI contrast is a gadolinium based compound that uses the paramagnetic effect to create its effect. With their respective modalities, both essentially achieve the same thing....with a few caveats.

https://www.radiologyinfo.org/en/submenu.cfm?pg=test-treatment

All the best.

It's basically an urban legend that'll never die. All it means is that you're at slight increased risk to have a non-specific allergic reaction. There is no cause-effect or cross-reactivity.

Below, is an excerpt from the American College of Radiology contrast manual:

Allergic-like reactions to modern iodinated and gadolinium-based contrast medium are uncommon (iodinated: 0.6% aggregate [1], 0.04% severe [2]; gadolinium-based: 0.01-0.22% aggregate [3], 0.008% severe) [3,4]. Risk factors exist that increase the risk of a contrast reaction. These generally increase the likelihood of a reaction by less than one order of magnitude, effectively increasing the risk that an uncommon event will occur, but not guaranteeing a reaction will take place. The following are some examples: Allergy: Patients who have had a prior allergic-like reaction or unknown-type reaction (i.e., a reaction of unknown manifestation) to contrast medium have an approximately 5-fold increased risk of developing a future allergic-like reaction if exposed to the same class of contrast medium again [3]. A prior allergic-like or unknown type reaction to the same class of contrast medium is considered the greatest risk factor for predicting future adverse events. In general, patients with unrelated allergies are at a 2- to 3-fold increased risk of an allergic-like contrast reaction, but due to the modest increased risk, restricting contrast medium use or premedicating solely on the basis of unrelated allergies is not recommended. Patients with shellfish or povidone-iodine (e.g., Betadine®) allergies are at no greater risk from iodinated contrast medium than are patients with other allergies (i.e., neither is a significant risk factor) [5,6]. There is no cross-reactivity between different classes of contrast medium. For example, a prior reaction to gadolinium-based contrast medium does not predict a future reaction to iodinated contrast medium, or vice versa, more than any other unrelated allergy.


Bottom line, get your CT scan and we won't serve you shellfish ;-)

All the best.

This is a rapidly evolving topic and I will admit to you that mammography
and breast cancer are not my areas of expertise. However, I'm fairly
confident that, given your family history, your are almost certainly at
higher risk. With that being said, I believe that you'd be a candidate for
screening MRI. I'd recommend for you to contact your local / regional
breast cancer center and have a consultation.

Wish I were more help.

All the best.

That is blessed news. Prayers to all of you. With regard to future
pregnancy, the short answer is yes. However, there are caveats and she
should have detailed conversations with her oncologist, ob/gyn and perhaps
a genetic counselor. I hope this helps.

Thank you and all the best.

Thank you and we wish you and your uncle luck with his cancer. Seeds are a form of brachytherapy when tiny radioactive metallic pellets are inserted and left in the prostate. They're implanted for life. Your uncle's urologist is the best to answer whether or not your uncle is a 'seed' candidate, but here's a little quick information from a web search: http://www.webmd.com/prostate-cancer/radioactive-seed-implants#1

All the best.

The short answer is yes and yes. The wavelength and 'strength' of the xray scanners is so weak that the radiation dose is essentially negligible. Ironically, due basically to cosmic rays, depending on the length of your flight, you will likely receive much more radiation than that in the scanner....albeit still a very very small dose.

all the best.

Dear Sir or Madam,

Sorry to hear you're struggling with this. I am a diagnostic radiologist
and neither a radiation oncologist nor hand surgeon. With that being said,
from what I know, the mainstay of treatment for Depuytren contracture is
surgery with injection procedures also performed. I believe that radiation
has been used as a preventative, but that seems unusual. I have a relative
who underwent Depuytren surgery and he did great. I think the bottom line
is treat early and don't wait.

I hope this helps and all the best,

Z

Thank you for your outreach and I hope you find a good outcome with your issue. Developmentally, the parotid has internal lymph nodes, whereas the submandibular gland does not. With that being said enlarged lymph nodes (either benign or malignant) typically are more numerous. With regard to a tumor, the most common parotid mass is a benign mixed tumor (aka pleomorphic adenoma), account for 80% of parotid tumors. CT does give a very good indication of this. Overlapping features of parotid space masses can make imaging diagnosis difficult, however, 1. benign much much more common than malignant 2. primary salivary gland malignancies usually not subtle...typically very aggressive appearing.

The FNA will give you your answer and were I a betting man, I'd say 1. likely benign and 2. likely a benign mixed tumor.

I hope this helps and all the best.