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Recurrent prostate cancer despite undetectable prostate specific antigen.

T K Takayama¹, J N Krieger, L D True

¹Department of Urology, University of Washington School of Medicine, Seattle.

The Journal of Urology

|November 1, 1992

Summary

Serum prostate specific antigen (PSA) is a sensitive marker for prostate cancer recurrence after treatment. However, some patients may still experience cancer recurrence even with undetectable PSA levels, highlighting the need for continued clinical monitoring.

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Area of Science:

Urology
Oncology
Medical Diagnostics

Background:

Serum prostate specific antigen (PSA) is a widely used tumor marker for monitoring prostate cancer after treatment.
Elevated PSA levels post-radical prostatectomy typically signify residual or recurrent prostate cancer.

Observation:

A case study documented recurrent prostate cancer in a patient after radical retropubic prostatectomy.
This recurrence occurred despite the patient exhibiting undetectable serum PSA levels.

Findings:

The study identified a rare instance of prostate cancer recurrence with undetectable serum PSA.
This challenges the assumption that undetectable PSA guarantees complete eradication of cancer.

Implications:

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Clinical monitoring for prostate cancer recurrence remains crucial, even with normalized PSA levels.

This case underscores the importance of comprehensive patient follow-up beyond biochemical markers.

Further research may be needed to understand the mechanisms behind PSA-undetectable recurrences.