What is Prostate Cancer

Prostate cancer is a malignancy that develops in the prostate, a small walnut-sized gland in the male reproductive system that produces seminal fluid. While many forms of prostate cancer grow slowly and remain confined to the gland, others can be aggressive and spread to surrounding tissues or distant organs.

What is the pathophysiology of prostate cancer?

Prostate cancer occurs when cells in the prostate gland undergo genetic mutations, causing them to grow and divide uncontrollably. This process often begins in the peripheral zone of the gland. Unlike benign prostatic hyperplasia (BPH), which is a non-cancerous enlargement, prostate cancer involves the development of malignant tumors that can invade local structures like the seminal vesicles or, in advanced stages, metastasize to the bones or lymph nodes.

Who is most at risk for prostate cancer?

Prostate cancer is the most common non-skin cancer among men in many developed nations. Age is the most significant risk factor, with the majority of cases diagnosed in men over age 65. Other critical factors include:

• Family History: Having a first-degree relative with the disease significantly increases risk.


• Ancestry: African American men have a higher incidence rate and are more likely to be diagnosed at a younger age compared to other ethnic groups.


• Genetics: Inherited mutations in genes such as BRCA1 and BRCA2 can predispose individuals to more aggressive forms of the disease.

How is prostate cancer classified?

Clinicians use the Gleason Score to grade the aggressiveness of prostate cancer cells. A lower score indicates cells that look more like normal tissue and grow slowly, while a higher score indicates more aggressive, rapidly growing cells. Most cases (over 95%) are classified as adenocarcinoma, meaning they originate in the glandular cells.

How does prostate cancer differ from other conditions?

It is important to distinguish prostate cancer from non-cancerous conditions like prostatitis (inflammation) or BPH. While these conditions may share symptoms such as urinary frequency or discomfort, prostate cancer is uniquely identified through Prostate-Specific Antigen (PSA) blood tests, digital rectal exams (DRE), and definitive tissue biopsies.

Next steps

• Consult a urologist to discuss personalized screening based on your age and family history.


• Visit DiseaseMaps.org to connect with 15 community members who have shared their personal experiences with prostate cancer.


• Review your family medical history to identify any patterns of hereditary cancer syndromes.

Medical disclaimer: This information is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician.

References

• National Cancer Institute (NCI) - Prostate Cancer Overview


• NIH Genetic and Rare Diseases Information Center (GARD)


• American Cancer Society - Prostate Cancer Statistics


• Prostate Cancer Foundation (PCF)