Marc Greenstein, D.O.

Health Professional

Marc Greenstein is a practicing urologist in New Jersey. He wrote for HealthCentral as a health professional for Prostate.

Latest by Marc Greenstein, D.O.

Treating Elevated PSA with Antibiotics

A common reason to see the urologist is for an elevated PSA, or prostate specific antigen. A man’s PSA can rise for a number of reasons. Inflammation or infection of the prostate, prostatic enlargement and, of course, cancer of the prostate are the m...

Radical Surgery to Treat Prostatitis

I was recently contacted by another urologist who asked me a very interesting question - Are you aware of using a radical prostatectomy to treat prostatitis? Prostatitis is an infection or inflammation of the prostate gland. There are different grade...

More Foods to Prevent Prostate Cancer

I would like to continue reviewing the importance of nutrition in prostate cancer. Our last post covered the use of vitamin E, selenium and green tea to prevent prostate cancer. These supplements can also be used to help a person fight an existing ca...

Prostate Cancer Diet: The Importance of Nutrition

I recently saw a 49-year-old male in my office for an elevated PSA of 2.7 ng/ml. It was 2.4 ng/ml 3 months earlier. His father had prostate cancer. He was treated with antibiotics for mild signs of prostatitis and his PSA decreased to 2.0 ng/ml. This ...

Fiducial Marker Seeds for Prostate Cancer: What They Do and Why They're Used

Dear Dr. Greenstein,** I was diagnosed with localized prostate cancer and I have chosen to have radiation therapy. My radiation oncologist wants my urologist to place marker seeds in my prostate before the treatment start. Why?** External beam radiat...

PSA Velocity: What Does a Quick Rise in PSA Mean?

Dear Dr. Greenstein:** My friend ,who is in his early 50s, just got the results of his annual PSA test - it was between 4-5. The results of his previous 6 annual tests were in the 1-2 range every year, until now. His brother recently had his prostate ...

Prostate Biopsy: What is It and How Does It Work?

A prostate biopsy is a test performed to diagnose prostate cancer. There are two main reasons why a prostate biopsy might be performed. A man has a high prostate specific antigen (PSA) level. This is a blood test used to screen men for prostate cance...

Diabetes, Obesity and Prostate Cancer: Is Surgery Still an Option?

Happy New Year. I would like to start the New Year answering one of ProstateCommons SharePosts. An overweight man with diabetes was diagnosed with “early prostate cancer.” He was advised against surgery because of his obesity and diabetes. He is look...

Rising PSA after Surgery

A 62-year-old patient had surgery to remove his cancerous prostate gland about 6 years ago. Two years after surgery his PSA started to rise and now his PSA is 4.6 ng/ml. I hate to say it but, it is clear that this patient has failed surgery and has “...

Urinary Incontinence after Robotic Prostatectomy

I would like to continue reviewing robotic surgery and its advantages to open prostate surgery. One of the main complications from prostate cancer surgery is urinary incontinence. The sphincter muscle that controls the storage of urine in the bladder ...