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Usama Mahmood, M.D.

Present Title & Affiliation

Primary Appointment

Assistant Professor, Department of Radiation Oncology, Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX

Education & Training

Degree-Granting Education

2006 University of California Irvine School of Medicine, Irvine, CA, MD, Medicine
2001 University of California Irvine, Irvine, CA, BS, Magna Cum Laude, Biological Sciences

Postgraduate Training

2011-2012 Clinical Fellowship, Radiation Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, TX
2010-2011 Chief Resident, Radiation Oncology, The University of Maryland Medical Center, Baltimore, MD
2007-2011 Clinical Residency, Radiation Oncology, University of Maryland Medical Center, Baltimore, MD
2006-2007 Clinical Internship, Internal Medicine, St. Mary Medical Center/University of California Los Angeles, Long Beach, CA

Board Certifications

5/2012 American Board of Radiology

Honors and Awards

2011 American Brachytherapy Society/Nucletron HDR Fellowship Program, Tacoma/Valley Radiation Oncology Center
2011 Breast Cancer Symposium Merit Award, American Society of Clinical Oncology
2010 Roentgen Resident Research Award, University of Maryland Department of Radiation Oncology
2006 Nathan Weinstein Memorial Research Award, University of California Irvine School of Medicine
2005 Nathan Weinstein Memorial Research Award, University of California Irvine School of Medicine
2005 NIH-Sponsored Medical Student Clinical Research Program, University of California Irvine Department of Otolaryngology-H&N Surgery
2005 Sigma Xi Scientific Research Society
2004 Alpha Omega Alpha Medical Honor Society (inducted with “Junior” distinction)
2004 NIH-Sponsored Medical Student Clinical Research Program, University of California Irvine Department of Otolaryngology-H&N Surgery
2003 Academic Excellence Award, University of California Irvine School of Medicine
2003 Association of Pathology Chairs Honors Society
2002 Academic Excellence Award, University of California Irvine School of Medicine
2001 Outstanding Volunteer Award, Drew/UCLA (UMMA) Free Clinic
2000 Phi Beta Kappa Honor Society
1999 Golden Key Honor Society
1997-2001 Campus Wide Honors Program, University of California Irvine
1997-2001 Dean’s Honor List all 12 quarters of undergraduate education, University of California Irvine
1997-2001 Regent’s Scholar, University of California

Selected Publications

Peer-Reviewed Original Research Articles

1. Mahmood U, Levy LB, Nguyen PL, Lee AK, Kuban DA, Hoffman KE. Current clinical presentation and treatment of localized prostate cancer in the United States. J Urol 192(2):1650-6, 12/2014. e-Pub 6/2014. PMID: 24931803.
2. Thaker NG, Kudchadker RJ, Swanson DA, Albert JM, Mahmood U, Pugh TJ, Boehling NS, Bruno TL, Prestidge BR, Crook JM, Cox BW, Potters L, Moran BJ, Keyes M, Kuban DA, Frank SJ. Establishing high-quality prostate brachytherapy using a phantom simulator training program. Int J Radiat Oncol Biol Phys 90(3):579-86, 11/2014. PMID: 25151539.
3. Walker GV, Grant SR, Guadagnolo BA, Hoffman KE, Smith BD, Koshy M, Allen PK, Mahmood U. Disparities in stage at diagnosis, treatment, and survival in nonelderly adult patients with cancer according to insurance status. J Clin Oncol 32(28):3118-25, 10/2014. PMID: 25092774.
4. Haque W, Wages C, Ronald Zhu X, Choi S, Pugh TJ, Frank SJ, Lee A, Mahmood U. Proton therapy for seminoma: Case report describing the technique, efficacy, and advantages of proton-based therapy for seminoma. Pract Radiat Oncol 1879-8500(14), 10/2014. PMID: 25413401.
5. Pugh TJ, Mahmood U, Swanson DA, Munsell MF, Wang R, Kudchadker RJ, Bruno TL, Frank SJ. Sexual potency preservation and quality of life after prostate brachytherapy and low-dose tadalafil. Brachytherapy, 9/2014.
6. Koshy M, Malik R, Sher DJ, Spiotto M, Mahmood U, Aydogan B, Weichselbaum RR. The effect of radiotherapy dose on survival in stage III non-small-cell lung cancer patients undergoing definitive chemoradiotherapy. Clin Lung Cancer 15(5):365-71, 9/2014. PMID: 24984565.
7. Wang J, Kudchadker R, Choi S, Pettaway CA, Choi H, Hobbs BD, Occena MC, McGuire SE, Pugh TJ, Hoffman K, Mahmood U, Kuban DA. Local recurrence map to guide target volume delineation after radical prostatectomy. Pract Radiat Oncol 4(6):236-46, 4/2014. PMID: 25407875.
8. Hoffman KE, Voong KR, Pugh TJ, Skinner H, Levy LB, Takiar V, Choi S, Du W, Frank SJ, Johnson J, Kanke J, Kudchadker RJ, Lee AK, Mahmood U, McGuire SE, Kuban DA. Risk of late toxicity in men receiving dose-escalated hypofractionated intensity modulated prostate radiation therapy: results from a randomized trial. Int J Radiat Oncol Biol Phys 88(5):1074-84, 4/2014. PMID: 24661661.
9. Bian SX, Kuban DA, Levy LB, Oh J, Choi S, McGuire SE, Frank SJ, Mahmood U, Nguyen PL, Pugh TJ, Lee AK, Hoffman KE. The Influence of Age and Comorbidity on the Benefit of Adding Androgen Deprivation to Dose-escalated Radiation in Men With Intermediate-risk Prostate Cancer. Am J Clin Oncol, 4/2014. PMID: 24732810.
10. Mahmood U, Hanlon AL, Koshy M, Buras R, Chumsri S, Tkaczuk KH, Cheston SB, Regine WF, Feigenberg SJ. Increasing national mastectomy rates for the treatment of early stage breast cancer. Ann Surg Oncol 20(5):1436-43, 5/2013. e-Pub 11/2012. PMID: 23135312.
11. Takiar V, Pugh TJ, Swanson D, Kudchadker RJ, Bruno TL, McAvoy S, Mahmood U, Frank SJ. MRI-based sector analysis enhances prostate palladium-103 brachytherapy quality assurance in a phase II prospective trial of men with intermediate-risk localized prostate cancer. Brachytherapy 20(5). e-Pub 5/2013. PMID: 23669149.
12. Spraker M, Bair E, Bair R, Connell P, Mahmood U. An Analysis of Patient Characteristics and Clinical Outcomes in Primary Pulmonary Sarcoma. Journal of Thoracic Oncology 192(2):1650-6, 2013.
13. Mahmood U, Morris C, Neuner G, Koshy M, Kesmodel S, Buras R, Chumsri S, Bao T, Tkaczuk K, Feigenberg S. Similar survival with breast conservation therapy or mastectomy in the management of young women with early-stage breast cancer. Int J Radiat Oncol Biol Phys 83(5):1387-93, 8/2012. e-Pub 1/2012. PMID: 22300561.
14. Pinn-Bingham M, Puthawala AA, Syed AM, Sharma A, Disaia P, Berman M, Tewari KS, Randall-Whitis L, Mahmood U, Ramsinghani N, Kuo J, Chen WP, McLaren CE. Outcomes of High-Dose-Rate Interstitial Brachytherapy in the Treatment of Locally Advanced Cervical Cancer: Long-term Results. Int J Radiat Oncol Biol Phys 85(3). e-Pub 7/2012. PMID: 22763030.
15. Koshy M, Villano JL, Dolecek TA, Howard A, Mahmood U, Chmura SJ, Weichselbaum RR, McCarthy BJ. Improved survival time trends for glioblastoma using the SEER 17 population-based registries. J Neurooncol 107(1):207-12, 3/2012. e-Pub 10/2011. PMID: 21984115.
16. Koshy M, Rich SE, Mahmood U, Kwok Y. Declining use of radiotherapy in stage I and II Hodgkin's disease and its effect on survival and secondary malignancies. Int J Radiat Oncol Biol Phys 82(2):619-25, 2/2012. e-Pub 1/2011. PMCID: PMC3017472.
17. Mohiuddin M, Mahmood U, Hall A, Rosenshein, N. Adjuvant pelvic irradiation for cervical cancer in the setting of a transplanted pelvic kidney. Journal of Cancer Research and Therapeutics 192(2):1650-6, 2012.
18. Mahmood U, Errens M, Zimrin A, Hanna N, Amin P, Sharma N. The remarkably distensible stomach: Case report highlighting the implications of gastric filling on radiation treatment planning for gastric lymphoma. Practical Radiation Oncology 2:265-9, 2012.
19. Koshy M, Rich S, Merchant TE, Mahmood U, Regine WF, Kwok Y. Post-operative radiation improves survival in children younger than 3 years with intracranial ependymoma. J Neurooncol 105(3):583-90, 12/2011. e-Pub 6/2011. PMID: 21637963.
20. Husain ZA, Mahmood U, Hanlon A, Neuner G, Buras R, Tkaczuk K, Feigenberg SJ. Accelerated partial breast irradiation via brachytherapy: a patterns-of-care analysis with ASTRO consensus statement groupings. Brachytherapy 10(6):479-85, Nov-Dec, 11/2011. e-Pub 6/2011. PMID: 21664879.
21. Mahmood U, Koshy M, Goloubeva O, Suntharalingam M. Adjuvant radiation therapy for high-grade and/or locally advanced major salivary gland tumors. Arch Otolaryngol Head Neck Surg 137(10):1025-30, 10/2011. PMID: 22006781.
22. Yashar C, Mahmood U. Strut-adjusted volume implant: a targeted radiation treatment in breast cancer. Future Oncol 6(12):1813-6, 12/2010. PMID: 21142853.
23. Mahmood U, Cerussi A, Dehdari R, Nguyen Q, Kelley T, Tromberg B, Wong B. Near-infrared imaging of the sinuses: preliminary evaluation of a new technology for diagnosing maxillary sinusitis. J Biomed Opt 15(3):036011, May-Jun, 5/2010. PMCID: PMC2887912.
24. Mahmood U, Kwok Y, Regine W, Patchell R. Whole brain irradiation for brain metastasis: Still the standard of care. The Lancet Oncology 11:221-222, 2010.
25. Mahmood U, Nguyen JD, Chang J, Gu M, Wong BJ. Atypical lipomatous tumor/well-differentiated liposarcoma of the parotid gland: case report and literature review. Ear Nose Throat J 88(10):E10-6, 10/2009. PMID: 19826985.
26. Ridgway JM, Ahuja G, Guo S, Su J, Mahmood U, Chen Z, Wong B. Imaging of the pediatric airway using optical coherence tomography. Laryngoscope 117(12):2206-12, 12/2007. PMID: 18322424.
27. Ridgway JM, Armstrong WB, Guo S, Mahmood U, Su J, Jackson RP, Shibuya T, Crumley RL, Gu M, Chen Z, Wong BJ. In vivo optical coherence tomography of the human oral cavity and oropharynx. Arch Otolaryngol Head Neck Surg 132(10):1074-81, 10/2006. PMID: 17043254.
28. Armstrong WB, Ridgway JM, Vokes DE, Guo S, Perez J, Jackson RP, Gu M, Su J, Crumley RL, Shibuya TY, Mahmood U, Chen Z, Wong BJ. Optical coherence tomography of laryngeal cancer. Laryngoscope 116(7):1107-13, 7/2006. PMID: 16826043.
29. Mahmood U, Ridgway J, Jackson R, Guo S, Su J, Armstrong W, Shibuya T, Crumley R, Chen Z, Wong B. In vivo optical coherence tomography of the nasal mucosa. Am J Rhinol 20(2):155-9, Mar-Apr, 3/2006. PMID: 16686378.
30. Wong BJ, Jackson RP, Guo S, Ridgway JM, Mahmood U, Su J, Shibuya TY, Crumley RL, Gu M, Armstrong WB, Chen Z. In vivo optical coherence tomography of the human larynx: normative and benign pathology in 82 patients. Laryngoscope 115(11):1904-11, March 2006, 11/2005. PMID: 16319597.
31. Han S, El-Abbadi NH, Hanna N, Mahmood U, Mina-Araghi R, Jung WG, Chen Z, Colt H, Brenner M. Evaluation of tracheal imaging by optical coherence tomography. Respiration 72(5):537-41, Sep-Oct, 9/2005. PMID: 16210894.
32. Mahmood U, Dehdari R, Cerussi A, Nguyen Q, Kelley T, Tromberg B, Wong B. Near-infrared transillumination of the maxillary sinuses: overview of methods and preliminary clinical results. Society of Photographic Instrumentation Engineers 5686:333-339, 2005.

Invited Articles

1. Mahmood U. In response to: Early-stage young breast cancer patients: Impact of local treatment on survival: Bantema-Joppe EJ, De Munck L, Visser O, et al (University of Groningen, Groningen, The Netherlands) Int J Radiat Oncol Biol Phys 81: e553-9, 2011. Breast Diseases: A Yearbook Quarterly 23:178-9, 2012.

Abstracts

1. Mahmood U, Koshy M, Pugh T, Hoffman H, Kuban D, Lee A. Decreasing Utilization of Brachytherapy for the Treatment of Prostate Cancer: a National Patterns of Care Analysis Using NCCN Risk Categorization. International Journal of Radiation Oncology Biology Physics 84:S399, 2012.
2. Mahmood U, Morris C, Neuner G, Koshy M, Buras R, Kesmodel S, Chumsri S, Bao T, Tkaczuk T, Feigenberg S. Comparing Survival with Breast-Conservation Therapy and Mastectomy in the Management of Young Women with Early-Stage Breast Cancer. Journal of Clinical Oncology(27):S85, 2011.
3. Mahmood U, Hanlon A, Koshy M, Buras R, Chumsri S, Tkaczuk K, Cheston S, Regine W, Feigenberg S. Early Evidence of Increasing National Mastectomy Rates for the Treatment of Breast Cancer. Preceedings of the American Society for Clinical Oncology Breast Cancer Symposium 27:S136, 2011.
4. Mahmood U, Morris C, Neuner G, Koshy M, Buras R, Kesmodel S, Chumsri S, Bao T, Tkaczuk K, Feigenberg S. Equivalent Survival With Breast Conservation Therapy or Mastectomy in the Management of Young Women With Early Stage Breast Cancer. International Journal of Radiation Oncology Biology Physics 81:S31-33, 2011.
5. Mahmood U, Goloubeva O, Koshy M, Mohiuddin M, Dhople A. Evaluation of Adjuvant Radiation Therapy in the Management of Male Breast Cancer: A Surveillance, Epidemiology, and End Results Analysis. Oncology 24:S2-3, 2010.
6. Mahmood U, Koshy M, Hanlon A, Buras R, Tkaczuk K, Feigenberg S. Local Therapy in the Management of Occult Primary Breast Cancer. Preceedings of the American Society for Therapeutic Radiation Oncology 78:S159-160, 2010.
7. Mahmood U, Goloubeva O, Koshy M, Suntharalingam M. Adjuvant Radiation is Associated With Improved Survival in High-Grade and Locally Advanced Malignant Major Salivary Gland Tumors: A Surveillance, Epidemiology, and End Results Analysis. International Journal of Radiation Oncology Biology Physics 75:S489, 2009.
8. Mahmood U, Richards L, D'Souza W, Naslund M, Amin P, Kwok Y. Dosimetric Analysis of the Effect of Prostate Edema on Cs-131 Brachytherapy. International Journal of Radiation Oncology Biology Physics 72:S343-344, 2008.
9. Mahmood U, Richards L, D'Souza W, Naslund M, Amin P, Kwok Y. Effect of Prostate Edema on Postimplant Dosimetry After Cs-131 Brachytherapy. Brachytherapy 7:134, 2008.
10. Mahmood U, Ridgway J, Jackson R, Guo S, Su J, Armstrong W, Crumley R, Shibuya T, Gui M, Chen Z, Wong B. Benign and Malignant Processes of the Human Larynx as Studied by Optical Coherence Tomography. Journal of Investigative Medicine 53:S141, 2005.
11. Mahmood U, Ridgway J, Jackson R, Guo S, Su J, Armstrong W, Shibuya T, Crumley R, Chen Z, Wong B. In Vivo Optical Coherence Tomography of the Nasal Mucosa. Preceedings of the Combined Otolaryngology Spring Meetings, 2005.
12. Mahmood U, Ridgway J, Guo S, Jackson R, Su J, Shibuya T, Gu M, Crumley R, Armstrong W, Chen Z, Wong B. Intraoperative Optical Coherence Tomography of Benign and Malignant Diseases of the Human Larynx. Preceedings of The Laser Microbeam and Medical Program (LAMMP), 2004.

Book Chapters

1. Mahmood U, Ben-Josef E, Crane C. Pancreas. In: Practical Essentials of Intensity Modulated Radiation Therapy, 3rd edition. Ed(s) Clifford Chao KS. Lippincott Williams & Wilkins, 2014.
2. Mahmood U, Husain Z, Kwok Y, Regine W. Stereotactic Radiosurgery Versus Whole Brain Radiation Therapy in the Management of Brain Metastases. In: Controversies in Neuro-Oncology: Best Evidence Medicine for Brain Tumor Surgery. Ed(s) Quinones-Hinojosa A, Raza SM. Thieme, 2014.
3. Mahmood U, Husain Z, Kwok Y, Regine W. Whole Brain Radiation Therapy in the Management of Patients with Multiple (> 5) Brain Metastase. In: Controversies in Stereotactic Radiosurgery: Best Evidence Medicine for Brain Tumor Surgery. Ed(s) Sheehan J, Gerszten P. Thieme, 2014.

Letters to the Editor

1. Mahmood U, Kwok Y, Regine WF, Patchell RA. Whole-brain irradiation for patients with brain metastases: still the standard of care. Lancet Oncol 11(3):221-2; author reply 223, 3/2010. PMID: 20202606.

Last updated: 4/17/2015