Metastatic Malignant Melanoma of the Urinary Bladder: A Case Report and Review of Literature

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Chaiyong Nualyong
Varat Woranisarakul
Ngoentra Tantranont
Ekkarin Chotikawanich
Santosh Shrestha
Tawatchai Taweemonkongsap

Abstract

Objective: Metastatic malignant melanoma of the urinary bladder is extremely rare in clinical practice, herein, we review literature to demonstrate epidemiology, management and prognosis of this rare condition.
Case presentation: A 57-year-old male with history of malignant melanoma of left big toe was referred to the urology division with the complaint of intermittent painless gross hematuria. Cystoscopy revealed multiple bladder masses, hence transurethral resection of bladder tumor was performed. Histologic and immunohistochemical examination revealed metastatic malignant melanoma involving urinary bladder mucosa.
Conclusion: Suspicion of metastasis should be raised in a patient with urinary symptom, especially if the history of malignant melanoma is present. Cystoscopy and biopsy is recommended if metastatic disease is suspected. While long-term survival is poor, management should be individualized according to the patient’s conditions, symptoms and severity of disease.

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How to Cite
Nualyong, C., Woranisarakul, V., Tantranont, N., Chotikawanich, E., Shrestha, S., & Taweemonkongsap, T. (2018). Metastatic Malignant Melanoma of the Urinary Bladder: A Case Report and Review of Literature. Siriraj Medical Journal, 70(3), 254–259. Retrieved from https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/129734
Section
Case Report