A Specific Cell Pattern Better Predicts Prostate Cancer Spread

Summary

When doctors diagnose prostate cancer, they typically rely on a grading system called the Gleason score to determine how aggressive the disease might be. This score evaluates how abnormal the tumor cells look under a microscope. For patients with an intermediate risk level, known as Gleason pattern 4, predicting whether the cancer will return or spread after surgery can be uniquely challenging.

Recently, researchers examined specific microscopic features within this intermediate category to see if they could better predict patient outcomes. They focused on a distinct structural layout of the tumor cells called cribriform or intraductal carcinoma. When analyzing records from 559 patients who had their prostates surgically removed, the team discovered that the presence of this specific cellular architecture was the strongest predictor of how the disease would behave over time.

The statistical results were highly revealing. Patients whose tumors featured this cribriform pattern faced an 80 percent increased risk of their cancer returning, which doctors detect through rising chemical markers in the blood. They also faced a 90 percent higher risk of the cancer spreading to other parts of the body, a process called metastasis. The researchers also measured other adverse features, like the total percentage of pattern 4 cells and the presence of a highly abnormal cell group called tertiary pattern 5. While both of these additional features helped predict a chemical recurrence of the cancer, the tertiary pattern 5 did not predict the actual spread of the disease. The researchers caution that these findings are based on a look back at a single hospital's records from 2008 to 2014, meaning broader studies across multiple medical centers are needed to fully confirm the results.

The story in numbers.

Radical prostatectomy patients

559

Increased risk of biochemical recurrence with Crib/IDC

80%

Increased risk of metastasis with Crib/IDC

90%