Diya Kallam

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About

Diya Kallam is a radiation oncologist whose research focuses on the intersection of radiation therapy, immunology, and treatment toxicity, particularly in prostate cancer. Her most-cited work investigates late radiation-related lymphopenia (RRL) following prostate stereotactic body radiation therapy (SBRT), with or without supplemental pelvic irradiation. This 2024 study addresses a critical gap in understanding how modern hypofractionated regimens affect immune cell populations, building on prior evidence that chronic lymphopenia can compromise both cancer control and patient outcomes. By characterizing the incidence and severity of RRL after SBRT, Kallam’s research helps refine treatment planning to minimize immunosuppression while maintaining oncologic efficacy. Her contributions are especially relevant as stereotactic techniques become more widely adopted, offering clinicians data-driven strategies to balance tumor targeting with immune preservation. With early citations already signaling its clinical importance, this work positions Kallam at the forefront of efforts to integrate immunologic considerations into radiation oncology practice. Her findings have direct implications for optimizing pelvic radiotherapy protocols, potentially improving both survival and quality of life for prostate cancer patients.