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Successful stereotactic body radiation therapy for stage I non-small cell lung cancer with malignant hypercalcemia — Case report
Thinh Chau and Allan Y. Chen

In patients with lung malignancy, the development of malignant hypercalcemia (MH) carries a dismal prognosis and represents a major therapeutic challenge given that conventional medical treatments have limited durability. Robust and lasting hypercalcemic reversal and symptomatic relief have been documented following surgical tumor resection. Stereotactic body radiation therapy (SBRT) has emerged as an effective treatment modality in medically inoperable patients with Stage I non-small cell lung cancer (NSCLC). In the current report, SBRT achieved durable tumor control and calcemic correction in a medically inoperable 79 year-old man with Stage I NSCLC patient with parathyroid hormone-related peptide (PTHrP)-induced MH.

Keywords: Malignant hypercalcemia, parathyroid hormone-related peptide, stereotactic body radiation therapy, Stage I non-small cell lung cancer

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