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  • Title: Pleural effusion in a patient with metastatic gastrointestinal stromal tumor treated with imatinib: case report.
    Author: Bongiovanni A, Ricci M, Riva N, Calpona S, Oboldi D, Pieri F, Cavaliere D, Mercatali L, Liverani C, La Manna F, De Vita A, Foca F, Gunelli E, Amadori D, Ibrahim T.
    Journal: Future Oncol; 2014 Dec; 10(15):2423-7. PubMed ID: 25525851.
    Abstract:
    Gastrointestinal stromal tumors are rare malignancies characterized by c-kit and PDGFR-α mutations targeted by imatinib. Pleural effusion is a very rare side effect of imatinib treatment. A 65-year-old female with metastatic gastrointestinal stromal tumor developed electrolyte imbalance, severe peripheral edema and progressively worsening dyspnea 2 months after starting imatinib. Having excluded cardiovascular and pulmonary disorders, imatinib was discontinued and prednisone 25 mg orally daily was begun. The patient's condition improved substantially over the next 48 h with a progressive decrease in dyspnea and a reduction in pleural effusion and peripheral edema. All side effects had resolved within 1 month. In view of the partial response obtained, the patient re-started imatinib after a 1-week interruption. Prednisone was maintained and there was no further toxicity.
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