Keck School Faculty

Leslie Ballas
Leslie Ballas
Associate Professor of Clinical Radiation Oncology
Radiation Oncology
NOR G350 1441 EASTLAKE AVE Health Sciences Campus Los Angeles
Dr. Leslie Ballas is an Associate Professor of Clinical Radiation Oncology at USC Norris Cancer Hospital. She received her undergraduate degree from Cornell University in New York, and her Medical Doctorate degree from the University of Michigan. She completed her internship in General Surgery at Weill-Cornell University in New York, and her residency in Radiation Oncology at Columbia Presbyterian Hospital in New York.\n\nAfter residency, Dr. Ballas spent time on the faculty at MD Anderson Cancer Center treating hematologic malignancies (leukemia, lymphoma and multiple myeloma). She has considerable experience treating this patient population. Because many lymphomas are highly curable, management of long term side effects from treatment is essential. She uses a variety of treatment techniques and modalities to minimize radiation dose to normal structures, thereby minimizing late effects from treatment. She also has a great deal of experience working with cutaneous lymphomas and the management of this category of lymphomas.She is the principal investigator on a multi-site clinical trial in the treatment of painful bone disease from multiple myeloma.\n\nDr. Leslie Ballas also specializes in cancers of the genitourinary tract, including malignancies of the prostate, urinary bladder, testicle, and kidney. Her research has focused on improving quality of life for men with prostate cancer. She is involved in the development of cancer treatment clinical trials for patients with genitourinary cancers and has brought multiple genitourinary cooperative group studies to USC. Dr. Ballas’ interests include advanced technology integration into cancer therapeutics, including image-guide radiation therapy (IGRT), stereotactic body radiotherapy (SBRT), and intensity modulated radiotherapy (IMRT).

Acute Respiratory Events and Dosimetry of Total Body Irradiation Patients Using In Vivo Lung Dose Monitoring and Custom Lung Block Adaptation Pract Radiat Oncol. 2020 Sep - Oct; 10(5):e397-e405. . View in PubMed

Salvage Therapies After 18F-Fluciclovine Detected Prostate Cancer Recurrences Clin Nucl Med. 2020 Sep; 45(9):668-671. . View in PubMed

Radiation Fractionation Schedules Published During the COVID-19 Pandemic: A Systematic Review of the Quality of Evidence and Recommendations for Future Development Int J Radiat Oncol Biol Phys. 2020 Aug 04. . View in PubMed

Chemoradiation for Management of Locally Recurrent or Residual Bladder Cancer: A Case Series and Review of the Literature Clin Genitourin Cancer. 2020 Aug; 18(4):e473-e477. . View in PubMed

Prostate bed and organ-at-risk deformation: Prospective volumetric and dosimetric data from a phase II trial of stereotactic body radiotherapy after radical prostatectomy Radiother Oncol. 2020 Jul; 148:44-50. . View in PubMed

Testicular Carcinoid Tumor in a Patient With Contralateral Classic Seminoma Urology. 2020 Jul; 141:e32-e34. . View in PubMed

National Practice Patterns and Overall Survival After Adjuvant Radiotherapy Following Radical Cystectomy for Urothelial Bladder Cancer in the USA, 2004-2013 Eur Urol Oncol. 2020 Jun; 3(3):343-350. . View in PubMed

CAR-T Cell Therapy for Lymphoma: How Does Radiation Therapy Fit In? Pract Radiat Oncol. 2020 May - Jun; 10(3):e155-e158.. View in PubMed

Investigating association of perineural invasion on prostate biopsy with Gleason score upgrading at prostatectomy: A multi-institutional analysis Cancer Med. 2020 May; 9(10):3383-3389. . View in PubMed

Appropriate Use Criteria for Imaging Evaluation of Biochemical Recurrence of Prostate Cancer After Definitive Primary Treatment J Nucl Med. 2020 Apr; 61(4):552-562. . View in PubMed

Nodal Recurrence From Prostate Adenocarcinoma: Curable Int J Radiat Oncol Biol Phys. 2020 02 01; 106(2):238-239. . View in PubMed

18F-Fluciclovine PET/CT Detection of Recurrent Prostate Carcinoma in Patients With Serum PSA = 1 ng/mL After Definitive Primary Treatment Clin Nucl Med. 2019 Mar; 44(3):e128-e132. . View in PubMed

Trimodality therapy for bladder cancer: modern management and future directions Curr Opin Urol. 2019 05; 29(3):210-215. . View in PubMed

Phase 1 Trial of SBRT to the Prostate Fossa After Prostatectomy Int J Radiat Oncol Biol Phys. 2019 05 01; 104(1):50-60. . View in PubMed

Adv Radiat Oncol. 2019 Jan-Mar; 4(1):96-102. . View in PubMed

Risk factors for loco-regional recurrence after radical cystectomy of muscle-invasive bladder cancer: A systematic-review and framework for adjuvant radiotherapy Cancer Treat Rev. 2018 Nov; 70:88-97. . View in PubMed

Using hospital medical record data to assess the accuracy of the SEER Los Angeles Cancer Surveillance Program for initial treatment of prostate cancer: a small pilot study Cancer Causes Control. 2018 Sep; 29(9):815-821. . View in PubMed

Novel Treatment Setup for Urethral Cancer: Use of the Prone Technique for Radiotherapy of the Penis Case Rep Oncol. 2018 May-Aug; 11(2):268-275. . View in PubMed

Active Surveillance for Prostate Cancer: Are We Failing Latino Patients at a Large Safety Net Hospital? Clin Genitourin Cancer. 2018 08; 16(4):e719-e727.. View in PubMed

PSMA PET: Transformational Change in Prostate Cancer Management? J Nucl Med. 2018 02; 59(2):228-229.. View in PubMed

Current Management Strategy for Penile Cancer and Future Directions Curr Oncol Rep. 2017 Aug; 19(8):54. . View in PubMed

Prostate-Specific Antigen and Prostate-Specific Antigen Kinetics in Predicting 18F-Sodium Fluoride Positron Emission Tomography-Computed Tomography Positivity for First Bone Metastases in Patients with Biochemical Recurrence after Radical Prostatectomy World J Nucl Med. 2017 Jul-Sep; 16(3):229-236. . View in PubMed

Immunotherapy in urothelial cancer, part 2: adjuvant, neoadjuvant, and adjunctive treatment Clin Adv Hematol Oncol. 2017 Jul; 15(7):543-551. . View in PubMed

Immunotherapy in urothelial cancer, part 1: T-cell checkpoint inhibition in advanced or metastatic disease Clin Adv Hematol Oncol. 2017 Jun; 15(6):466-477. . View in PubMed

The Rationale for Post-Operative Radiation in Localized Bladder Cancer Bladder Cancer. 2017 Jan 27; 3(1):19-30. . View in PubMed

Tolerance of Orthotopic Ileal Neobladders to Radiotherapy: A Multi-institutional Retrospective Study Clin Genitourin Cancer. 2017 12; 15(6):711-716. . View in PubMed

What Medical, Urologic, and Radiation Oncologists Want from Molecular Imaging of Prostate Cancer J Nucl Med. 2016 Oct; 57(Suppl 3):6S-12S. . View in PubMed

Maternal and Fetal Outcomes After Therapy for Hodgkin or Non-Hodgkin Lymphoma Diagnosed During Pregnancy JAMA Oncol. 2016 Aug 01; 2(8):1065-9. . View in PubMed

ACR Appropriateness Criteria® Hodgkin Lymphoma-Favorable Prognosis Stage I and II Am J Clin Oncol. 2016 12; 39(6):535-544. . View in PubMed

ACR Appropriateness Criteria® Recurrent Hodgkin Lymphoma Oncology (Williston Park). 2016 12 15; 30(12):1099-1031106-8. . View in PubMed

Radical Prostatectomy or External Beam Radiation Therapy vs No Local Therapy for Survival Benefit in Metastatic Prostate Cancer: A SEER-Medicare Analysis J Urol. 2015 Aug; 194(2):378-85. . View in PubMed

Modern radiotherapeutic strategies in the management of lymphoma Future Oncol. 2015; 11(6):1011-20. . View in PubMed

Chromoplexy and hypoxic microenvironment drives prostate cancer Lancet Oncol. 2014 Dec; 15(13):1419-1421. . View in PubMed

Emergence of integrated urology-radiation oncology practices in the State of Texas Int J Radiat Oncol Biol Phys. 2012 Sep 01; 84(1):15-9. . View in PubMed

Cytogenetic profile of patients with acute myeloid leukemia and central nervous system disease Cancer. 2012 Jan 01; 118(1):112-7. . View in PubMed

Involved field radiation for Hodgkin's lymphoma: the actual dose to breasts in close proximity Med Dosim. 2012; 37(4):374-82. . View in PubMed

Treatment interruption and discontinuation in radiotherapy for rectal cancer Cancer Invest. 2010 Mar; 28(3):289-94. . View in PubMed

Advances in radiobiological studies using a microbeam J Radiat Res. 2009 Mar; 50 Suppl A:A7-A12. . View in PubMed

Radiation therapy facilities in the United States Int J Radiat Oncol Biol Phys. 2006 Nov 15; 66(4):1204-11. . View in PubMed

Amelioration of vascular dysfunctions in diabetic rats by an oral PKC beta inhibitor Science. 1996 May 03; 272(5262):728-31. . View in PubMed

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