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  • Title: Urothelial carcinoma of the prostate with raised β-hCG levels: a case report.
    Author: Sołek J, Kalwas M, Sobczak M, Dębska-Szmich S, Kupnicki P, Jesionek-Kupnicka D.
    Journal: J Med Case Rep; 2022 Jun 15; 16(1):238. PubMed ID: 35701835.
    Abstract:
    BACKGROUND: Trophoblastic differentiation in primary urothelial carcinoma of the prostate is extremely rare. An increased level of β-subunit human chorionic gonadotropin in serum in urothelial carcinoma is detected in approximately 30% of cases. To our knowledge, increased concentration of β-subunit human chorionic gonadotropin in serum in prostatic urothelial carcinoma has never been reported and its clinical significance is not evaluated yet. CASE REPORT: Here we present the case of a 67-year-old European patient who was admitted to the hospital with hematuria, dysuria, and enlarged painful testis. Ultrasonographic examination of the testis did not reveal any focal lesion. Magnetic resonance imaging of the pelvis showed a tumor of 62 mm diameter mainly located in the posterior part of the prostatic gland. A pathological examination from cystoscopy biopsy allowed us to set the diagnosis of high-grade invasive urothelial carcinoma with trophoblastic differentiation. The patient received neoadjuvant treatment. Nonetheless, after a short period of disease stabilization, he developed progression and brain metastasis. He died 9 months after diagnosis. During the disease course, his β-human chorionic gonadotropin level was measured repeatedly and analyzed in relation to disease progression. The level of serum β-human chorionic gonadotropin corresponded with the therapy response; it was at its lowest during stabilization and the highest in the metastatic stage. CONCLUSION: Our case study provides the first report of urothelial cancer of the prostate, with a concomitant increase of β-subunit human chorionic gonadotropin level with testis enlargement. Besides its rarity, it constitutes an interesting observation of increasing β-subunit human chorionic gonadotropin concentration with concomitant disease progression.
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