Publications by authors named "Sumana Premkumar"

Cancer stem cells in breast cancer migrating to the bone marrow may cause future metastasis, particularly during periods of decreased immunity. Natural killer (NK) cells have a role in immune surveillance and are able to target cancer stem cells. The present study reported a case in which NK cell-based autologous immune enhancement therapy was used combined with conventional treatments in a patient with stage IIIA breast cancer, yielding >28 months of disease-free survival.

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Purpose: Studies using split field IMRT to spare dysphagia/aspiration related structures (DARS) have raised concern regarding dose uncertainty at matchline. This study explores the utility of hybrid VMAT in sparing the DARS and assesses matchline dose uncertainty in postoperative oral cavity cancer patients and compares it with VMAT.

Methods & Materials: Ten postoperative oral cavity cancer patients were planned with h-VMAT and VMAT using the same planning CT dataset.

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The purpose of this planning case report is to share the perceived dosimetric benefits of innovative hybrid volumetric modulated arc therapy (h-VMAT) for bilateral breast cancer radiotherapy in two patients with synchronous bilateral breast cancer. Two patients with early bilateral breast cancer after breast conservation surgery and adjuvant chemotherapy were planned for bilateral breast radiotherapy. On the planning computed tomography (CT) dataset, bilateral breast planning treatment volume (PTV) and organs at risk (OARs) were delineated using standard guidelines.

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Radiotherapy is the primary form of treatment in patients with locally advanced cervical carcinoma. However for residual disease in the form of the persistent lymph nodes, surgery or chemotherapy is recommended. As surgery is not acceptable by every patient and chemotherapy has associated side effects, we hereby report the positive outcome of in vitro expanded natural killer cell and activated T lymphocyte based autologous immune enhancement therapy (AIET) for the residual lymphadenopathy in a patient with locally advanced cervical cancer after radiation.

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