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Pelvic CT findings after radical prostatectomy

R M Summers1, M Korobkin, L E Quint

  • 1Department of Radiology, University of Michigan Medical Center, Ann Arbor 48109-0030.

Journal of Computer Assisted Tomography
|September 1, 1993
PubMed
Summary

Pelvic CT scans after radical prostatectomy reveal common findings like seminal vesicle remnants and a rectovesical soft tissue bar. These post-surgical changes should not be mistaken for prostate cancer recurrence.

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Area of Science:

  • Radiology
  • Oncology
  • Urology

Background:

  • Radical prostatectomy is a common treatment for prostate cancer.
  • Interpreting post-surgical pelvic CT scans requires understanding expected anatomical changes.
  • Distinguishing benign post-operative findings from tumor recurrence is crucial for patient management.

Purpose of the Study:

  • To characterize the spectrum of pelvic CT findings in patients after radical prostatectomy.
  • To identify common imaging features that may mimic local tumor recurrence.
  • To aid radiologists in accurate interpretation of post-prostatectomy pelvic CT.

Main Methods:

  • Retrospective evaluation of pelvic CT scans from 17 patients.
  • Patients had undergone radical prostatectomy for prostate cancer.

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  • All patients were clinically presumed to be free of local recurrence.

    • Main Results:

    • Retropubic bladder base observed in 100% of patients.
    • Levator sling completely delineated in 88%; fat between rectum and bladder base seen in 44%.
    • Common unsuspected findings included seminal vesicle remnants (88%) and a rectovesical soft tissue bar (53%).

    Conclusions:

    • Seminal vesicle-like soft tissue structures are routinely visualized post-surgery.
    • A horizontal soft tissue bar in the rectovesical space is a common finding.
    • These identified structures are benign post-operative changes and should not be confused with local tumor recurrence.