Background: Among prostate cancer, primary prostate squamous cell carcinoma (SCC) is a rare condition with low incidence, and secondary prostate SCC is rarer with fewer cases reported globally. This report presents an extremely rare case of secondary prostate SCC that metastasised from lung cancer.
Case Presentation: This study reports the case of a 77-year-old man who presented with acute urinary retention and dysuria and was admitted to our hospital. Physical and digital rectal examinations were conducted and revealed the overfilling of the suprapubic bladder and a slightly enlarged prostate without palpable nodules, respectively. The patient was tested negative for total and free prostate antigens (PSA) and had large masses in the upper lobes of both lungs and an irregularly enlarged prostate in the computed tomography images. The patient was inserted immediately with 18F triple-cavity Foley catheter to drain haematuria with blood clots. The patient was treated with electric coagulation haemostasis and transurethral resection of the prostate and subjected to postoperative histopathological analysis, which revealed the diagnosis of SCC. The patient was advised to undergo further radiation therapy and chemotherapy but rejected all follow-up treatments for lungs and prostate. The patient recovered uneventfully and was discharged 7 days after the operation. The patient remained alive after 6 months of follow-up.
Conclusions: Secondary prostate SCC is an extremely rare type of tumour. Surgical intervention plays a role in stopping bleeding and relieving urination problems, and timely treatment may led to favourable prognosis.
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