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Urethral metastasis from renal cell carcinoma
Hiroya Senzaki1, Takehiko Okamura, Hiroyuki Tatsura
1Department of Urology, Johoku Hospital, Nagoya and Meijo Hospital, Aichi, Japan.
Summary
This case report details a rare instance of renal cell carcinoma (RCC) metastasis to the prostatic urethra following surgery. Such urethral metastases from RCC are exceptionally uncommon in medical literature.
Area of Science:
- Urology
- Oncology
- Pathology
Background:
- Renal cell carcinoma (RCC) is a significant malignancy with diverse metastatic patterns.
- Transurethral resection of the prostate (TURP) is a common procedure for benign prostatic hyperplasia and, occasionally, for localized prostate cancer.
- Urethral metastasis represents a rare but possible sequela of distant malignancies.
Observation:
- A unique case of metastasis specifically to the prostatic urethra is presented.
- The metastasis originated from a previously diagnosed and resected renal cell carcinoma.
- This occurred in the context of a patient who had undergone transurethral resection of the prostate.
Findings:
- The study documents a solitary metastasis within the prostatic urethra.
- This finding highlights an extremely rare presentation of renal cell carcinoma recurrence.
- A review of existing literature identified only four prior reported cases of urethral metastasis from RCC.
Implications:
- This case expands the understanding of rare metastatic sites for renal cell carcinoma.
- It underscores the importance of considering unusual presentations in post-treatment surveillance.
- Further investigation into the mechanisms and risk factors for such rare metastases may be warranted.