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Tumor lysis syndrome (TLS) occurs in rapidly proliferating tumor cells, either spontaneously or after cytotoxic therapy. It has been well-documented in hematological diseases but is extremely rare in solid neoplasms, particularly in prostate cancer (PRCA). In the presence of risk factors, it can cause metabolic disturbances and be potentially fatal.  We searched PubMed, Medline, ScienceDirect, and Scopus for "tumor lysis syndrome" and "prostate cancer" and conducted a systematic review with a pooled analysis for the published literature and cases from our institution. Twenty-two TLS cases were identified (18 published in the literature and four cases from our institution). The patients' median age was 68 years (range 16-82), and most cases were prostate adenocarcinoma. The median prostate-specific antigen (PSA) was 374 (range 66.7-10,867). Ten cases (45.5%) had spontaneous TLS (STLS) while 12 cases (54.5%) were treatment-related (TTLS). All patients had elevated lactate dehydrogenase (LDH) with other biochemical variables, and all underwent aggressive supportive therapy. Eleven patients underwent hemodialysis, 12 patients received rasburicase, while three patients received allopurinol. The mortality rate was 75% among 12 cases of TTLS, and it was 30% of the 10 cases with STLS.  Among patients with PRCA, both TTLS and STLS linked to very high mortality. Early identification of TLS would substantially attain improved survival outcomes. Hence, physicians should consider TLS as a differential diagnosis when evaluating AKI and electrolyte abnormalities, particularly in patients with metastatic PRCA and high disease burden, even before the initiation of cytotoxic therapy.

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Intricate Interplay of Entwined Metabolic and Inflammatory Life-threatening Processes in Tumor Lysis Syndrome Complicating Prostate Cancer: A Systematic Review with a Single Institution Experience