Spontaneous Tumor Lysis Syndrome in Metastatic Melanoma.

Tumor lysis syndrome (TLS) complicating non-hematologic malignancy is infrequent and spontaneous TLS is a very rare occurrence in patients with solid tumors. We report a case of spontaneous TLS in a patient with metastatic melanoma. Clinicians should have awareness of the possibility of spontaneous TLS in patients with solid tumors and should recognize the clinical presentation and laboratory tests for its diagnosis.