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Urethral Metastasis from Rectal Adenocarcinoma: A Case Report and Review of the Literature
Author(s) -
CHANG ChunFeng,
HSU ShunNeng,
CHIEN ShangTao,
WANG ChianTing,
NI YingJui,
HSU ChingWen,
MEI JianTai
Publication year - 2015
Publication title -
luts: lower urinary tract symptoms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.451
H-Index - 15
eISSN - 1757-5672
pISSN - 1757-5664
DOI - 10.1111/luts.12069
Subject(s) - medicine , rectal examination , metastasis , physical examination , adenocarcinoma , urethra , rectum , radiology , stage (stratigraphy) , lesion , urinary system , colorectal cancer , radiation therapy , surgery , prostate , urology , cancer , paleontology , biology
Case A 73‐year‐old man with Dukes' C adenocarcinoma of the rectum, pT3N2bM0 , stage IIIB , presented with voiding difficulties including poor stream and terminal dribbling for one month. The patient was under careful surveillance and had no postoperative recurrence. Physical examination revealed a palpable irregular nodular lesion (0.5 × 0.5 cm 2 ) at the penile‐scrotal junction. He underwent urethroscopy, which showed a cauliflower lesion in the pendulous urethra. Transurethral resection was performed and histopathologic and immunochemical staining demonstrated a metastatic moderately differentiated urethral adenocarcinoma from the colorectal primary. Outcome His voiding disorder improved significantly post‐operation and he commenced second‐line chemotherapy combined with regional radiotherapy. Follow‐up urethrocystoscopy and abdominal computed tomography demonstrated no recurrence or metastatic disease. His tumor marker remained within the normal range for 12 months. Conclusion Urethral metastasis from primary colon cancer is extremely rare. This disease, with its various atypical presentations, presents a diagnostic challenge to the clinician. In patients with recurrent or persistent lower urinary tract symptoms, further urologic workup including thorough history taking, physical examination, and imaging surveys is warranted.

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