Cases reported "Tumor Lysis Syndrome"

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1/36. Spurious elevation of automated platelet counts in secondary acute monocytic leukemia associated with tumor lysis syndrome.

    The intent of this article is to describe the effect of tumor lysis on automated platelet counts in therapy-related, secondary acute monocytic leukemia. The first patient was a 69-year-old man with large cell carcinoma of the lung who developed acute monocytic leukemia 1(1/2) years after initiation of radiation and chemotherapy for his carcinoma. The second patient was a 72-year-old female with peripheral T-cell lymphoma who developed acute monocytic leukemia 1 year after initiation of chemotherapy for her lymphoma. Platelet counts were determined by the automated Coulter (STKS) counter. Both patients had clinical and laboratory evidences of tumor lysis syndrome and disseminated intravascular coagulation. The peripheral blood smears revealed numerous fragments of leukemic cells and apoptotic cells with pyknotic nuclei. The Coulter machine enumerated these cellular fragments as platelets, resulting in falsely elevated platelet counts. awareness of this laboratory artifact in secondary acute monocytic leukemia with tumor lysis syndrome is important so that potential life-threatening thrombocytopenia is not overlooked.
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2/36. tumor lysis syndrome occurring after the administration of rituximab in lymphoproliferative disorders: high-grade non-Hodgkin's lymphoma and chronic lymphocytic leukemia.

    Rituximab, an anti-CD20 antibody, has been recently approved for the treatment of low-grade or follicular non-Hodgkin's lymphoma (NHL). Because of its relatively benign side effect profile, it has been considered a nontoxic alternative to chemotherapy. Recently, however, tumor lysis syndrome (TLS) resulting from rituximab has been reported in a patient with chronic lymphocytic leukemia (CLL). We herein present two cases of rituximab-induced TLS. The first case occurred in a patient with high-grade NHL, while the second case occurred in a patient with CLL. We also present a summary of the literature regarding TLS induced by immunotherapies.
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ranking = 0.625
keywords = leukemia
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3/36. tumor lysis syndrome following hemi-body irradiation for metastatic breast cancer.

    tumor lysis syndrome (TLS) is a rare serious acute complication of cancer therapy, reported mainly following chemotherapy in patients with large tumor load and chemosensitive disease. These are mainly patients with non-Hodgkin's lymphoma, leukemia and rarely in solid tumors. It is less frequently described after radiotherapy for lymphoid and hematological malignancies. TLS following radiotherapy for solid tumors is a very rare complication. In this report/review we describe a seventy-three-year-old male patient with progressive metastatic carcinoma of the breast to the lungs, liver and bone. He was referred for radiotherapy because of generalized bony pains. The patient was planned for sequential hemi-body irradiation starting with the more symptomatic upper half body. After premedication, he was given 8.5 Gy to the mid point at the maximum chest separation with anterior lung attenuator limiting uncorrected lung dose to 6.15 Gy. A further 3.5 Gy electron boost to the fungating breast tumor was given to the 100%. Forty-eight hours after irradiation he developed hyperkalemia, hyperphosphatemia, hyperuricemia, hypocalcemia and renal failure. These clinical and biochemical changes are typical of tumor lysis syndrome (TLS). Despite hydration, and treating the hyperuricemia, the patient developed coma and died eight days after irradiation. The prophylaxis and management of TLS and in high-risk patients are described to avoid this frequently fatal complication.
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ranking = 0.125
keywords = leukemia
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4/36. Spontaneous acute tumor lysis syndrome with advanced gastric cancer.

    Acute tumor lysis syndrome (TLS) occurs frequently in hematologic malignancies such as high-grade lymphomas and acute leukemia, which are rapidly proliferating and chemosensitive tumors. It occurs rarely in solid tumors and has never been reported in gastric adenocarcinoma. Typical biochemical findings of acute tumor lysis syndrome are hyperuricemia, hyperkalemia, hyperphosphatemia and hypocalcemia in patients with a malignancy. Rapid changes of these electrolytes may cause cardiac arrhythmia, seizure, acute renal failure and sudden death. Therefore, as soon as it is detected, it should be taken care of immediately. Until now almost all cases of TLS associated with solid tumor have developed after cytoreductive therapy in chemosensitive tumors. We report here a case of spontaneous acute tumor lysis in a patient of advanced gastric cancer with hepatic metastases and multiple lymphadenopathy. The biochemical finding of TLS improved with the management and tumor burden also showed slight response to the one cycled combination chemotherapy but the patient died of progressive pneumonia.
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ranking = 0.125
keywords = leukemia
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5/36. Acute tumor lysis syndrome induced by high-dose corticosteroids in a patient with chronic lymphatic leukemia.

    Acute tumor lysis syndrome (TLS) has been reported in hematological malignancies, such as aggressive non-Hodgkin's lymphoma, acute lymphoblastic leukemia, and rarely, in other malignancies (solid tumors) in association with the administration of cytotoxic therapy. We report a case of a patient with chronic lymphatic leukemia (CLL) who developed autoimmune hemolytic anemia treated by high dose corticosteroids and, following this treatment, developed acute tumor lysis syndrome. Only one similar case has been reported recently. Clinicians should be aware that corticosteroids alone may produce this potentially life-threatening complication.
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ranking = 0.75
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6/36. Acute renal failure from spontaneous acute tumor lysis syndrome: a case report and review.

    Acute tumor lysis syndrome (ATLS), a condition which results from a rapid destruction of tumor cells with massive release of cellular breakdown products, has been well described. However, only a few cases of spontaneous ATLS have been reported in the literature. Acute renal failure (ARF) from spontaneous ATLS has been reported only in three patients who were diagnosed to have Burkitt's lymphoma, adenocarcinoma, and acute myeloid leukemia. We report a similar case of a patient with non-Hodgkin's lymphoma, who developed ARF from spontaneous ATLS. ARF can complicate the clinical course of spontaneous ATLS. Since only one patient survived, patients who develop ARF from spontaneous ATLS have a poor outcome. This paper illustrates the need to anticipate the development of ARF, despite aggressive therapy, in a patient with spontaneous ATLS. prospective studies on renal function prior to and during therapy are required in order to develop a clinical profile reliably detecting patients at risk for developing renal failure and subsequent complication.
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ranking = 0.125
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7/36. Dexamethazone-induced acute tumor lysis syndrome in a T-cell malignant lymphoma.

    We report a case of steroid-induced acute tumor lysis syndrome and review the literature. A 60-year-old woman was started on steroid therapy for dyspnea due to bilateral pleural effusion and a large mass involving the anterior mediastinum. The final diagnosis was precursor T-lymphoblastic lymphoma-leukemia. Following steroid therapy, the patient developed acute renal failure and laboratory evidence of metabolic changes induced by massive cytolysis. She received vigorous hydration, diuretic and allopurinol therapy, and haemodialysis. Her diuresis, renal function and laboratory data returned to normal within 2 weeks. A review of the medical literature on T-cell lymphoma revealed only one similar case of steroid-induced acute tumor lysis syndrome, a life-threatening metabolic emergency. This risk should be kept into account in the management of patients with lymphoproliferative disorders.
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ranking = 0.125
keywords = leukemia
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8/36. Spontaneous tumor lysis syndrome in solid tumors: really a rare condition?

    Acute tumor lysis syndrome (ATLS), which occurs spontaneously, without cytotoxic therapy, is a rare condition. Spontaneous TLS (STLS) has been seen most commonly in lymphoma and leukemia. We report a series of 3 cases of STLS in patients with solid tumors who were hospitalized in our department during a 9-month period and suggest that STLS is probably more frequent than previously thought.
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ranking = 0.125
keywords = leukemia
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9/36. tumor lysis syndrome (TLS) following fludarabine therapy for chronic lymphocytic leukemia (CLL): case report and review of the literature.

    adenosine deaminase inhibitors have proven superior to alkylating agent-based therapies in inducing clinical and hematologic remissions in treated and previously untreated chronic lymphocytic leukemia (CLL) patients, and they have become increasingly accepted as a standard for therapy. We report the case of a 66-year-old patient with a 7-year history of CLL who had been previously treated with alkylating agents. Upon presentation with abdominal lymphadenopathy, a 5-day course of the nucleoside analogue, fludarabine, was administered. Two days after completion, the patient developed acute tumor lysis syndrome (TLS) that induced renal failure with hyperkalemia and hyperuricemia. This resulted in critical, life-threatening complications requiring hospitalization, aggressive hemodialysis and fluid replacement therapy. While only 5 other cases of TLS associated with fludarabine therapy have been reported since 1989, we recommend that adenosine deaminase inhibitor therapy be initiated with the addition of allopurinol, and that hydration with copious amounts of oral fluids during therapy be encouraged in order to help protect against the renal effects of potential TLS induced by these agents.
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ranking = 0.625
keywords = leukemia
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10/36. Elitek-rasburicase: an effective means to prevent and treat hyperuricemia associated with tumor lysis syndrome, a Meeting Report, Dallas, texas, January 2002.

    Renal precipitation of uric acid associated with tumor lysis syndrome (TLS) is a major complication in the management of leukemia, lymphoma, and other drug-sensitive cancers. Management of hyperuricema has historically consisted of administration of allopurinol, hydration, alkalinization to maintain pH between 7.0 and 7.3, and in some cases diuresis. allopurinol, a xanthine analogue, blocks xanthine oxidase and formation of uric acid. urate oxidase converts uric acid to allantoin, which is 5-10 times more soluble than uric acid. Homo sapiens cannot express urate oxidase because of a nonsense mutation. urate oxidase was initially purified from aspergillus flavus fungus. Treatment with this nonrecombinant product had been effective in preventing renal precipitation of uric acid in cancer patients, but was associated with a relatively high frequency of allergic reactions. This enzyme was recently cloned from A. flavus and is now manufactured as a recombinant protein. Clinical trials have shown this drug to be more effective than allopurinol for prevention and treatment of hyperuricemia in leukemia and lymphoma patients. This drug has been approved in europe as well as the US and several clinical trials are in progress to further determine its clinical utility in other patient subsets. The purpose of this meeting was to discuss usefulness of recombinant urate oxidase, also known as rasburicase, Fasturtec, and Elitek, for the management of TLS in certain cancer patients.
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ranking = 0.25
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