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Omar M Ragab, MD

Title(s)Assistant Professor of Clinical Radiation Oncology
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    Title(s)Director of Brachytherapy


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    Dr. Omar Ragab is an Assistant Professor of Clinical Radiation Oncology at USC Norris Cancer Hospital and USC + Los Angeles County Medical Center. He joined USC in September 2016.

    Dr. Ragab completed his residency training as chief resident in radiation oncology at LAC+USC Medical Center in Los Angeles. He received his medical degree from the Keck School of Medicine of USC and received his Bachelor of Arts degree in Neuroscience from the University of Southern California, graduating magna cum laude. Dr. Ragab recently completed his fellowship training in clinical brachytherapy at the Ronald Reagan UCLA Medical Center under the mentorship of Dr. Jeffrey Demanes. Dr. Ragab's research interests include gynecologic cancers and brachytherapy treatment programs.

    Dr. Ragab provides clinical services for GI cancer, GYN cancer, and Sarcoma and is developing a brachytherapy program for multiple disease sites at Keck Medical Center of USC and LAC+USC Medical Center. He is focused and dedicated in his expert management of patients diagnosed with gynecological cancers. He is highly recognized for his easy-going personality, exemplary skill, knowledge, and work ethic. He provides top level care in gynecologic oncology involving state of the art intensity modulated radiation therapy (IMRT) techniques, as well as traditional but highly effective intra-cavitary brachytherapy procedures.

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Vaidya P, Mehta A, Ragab O, Lin S, In GK. Concurrent radiation therapy with programmed cell death protein 1 inhibition leads to a complete response in advanced cutaneous squamous cell carcinoma. JAAD Case Rep. 2019 Sep; 5(9):763-766. PMID: 31516991.
      View in: PubMed
    2. Trodello C, Higgins S, Ahadiat O, Ragab O, In G, Hawkins M, Wysong A. Cetuximab as a Component of Multimodality Treatment of High-Risk Cutaneous Squamous Cell Carcinoma: A Retrospective Analysis From a Single Tertiary Academic Medical Center. Dermatol Surg. 2019 02; 45(2):254-267. PMID: 30672860.
      View in: PubMed
    3. Matsuo K, Machida H, Mandelbaum RS, Ragab OM, Roman LD, Wright JD. Tumor-specific outcome of metachronous uterine malignancy after pelvic irradiation for cervical cancer. Gynecol Oncol. 2018 11; 151(2):250-256. PMID: 30197062.
      View in: PubMed
    4. Mesko S, Marks L, Ragab O, Patel S, Margolis DA, Demanes DJ, Kamrava M. Targeted Prostate Biopsy Gleason Score Heterogeneity and Implications for Risk Stratification. Am J Clin Oncol. 2018 05; 41(5):497-501. PMID: 27281263.
      View in: PubMed
    5. Wong KK, Ragab O, Tran HN, Pham A, All S, Waxer J, Olch AJ. Acute toxicity of craniospinal irradiation with volumetric-modulated arc therapy in children with solid tumors. Pediatr Blood Cancer. 2018 07; 65(7):e27050. PMID: 29630782.
      View in: PubMed
    6. Yoo SK, Bian SX, Lin E, Batth SS, Ng LW, Andrade J, Williams PA, Pham AH, Ragab OM, Schechter NR, Chang EL, Jennelle RLS. Development of a Radiation Oncology Resident Continuity Clinic to Improve Clinical Competency and Patient Compliance. Int J Radiat Oncol Biol Phys. 2018 03 01; 100(3):551-555. PMID: 29413269.
      View in: PubMed
    7. Pan E, Tung L, Ragab O, Morocco E, Wecsler J, Sposto R, Raghavendra A, Chung E, Lang JE. Inflammatory Breast Cancer Outcomes in a Contemporary Series. Anticancer Res. 2017 09; 37(9):5057-5063. PMID: 28870934.
      View in: PubMed
    8. Ragab O, Banerjee R, Park SJ, Patel S, Zhang M, Wang J, Velez M, Demanes DJ, Kamrava M. Comparison of patient-reported acute urinary and sexual toxicity scores in a 6- versus 2-fraction course of high-dose-rate prostate brachytherapy monotherapy. J Med Imaging Radiat Oncol. 2018 Feb; 62(1):109-115. PMID: 28856847.
      View in: PubMed
    9. Matsuo K, Machida H, Ragab OM, Garcia-Sayre J, Yessaian AA, Roman LD. Patient compliance for postoperative radiotherapy and survival outcome of women with stage I endometrioid endometrial cancer. J Surg Oncol. 2017 Sep; 116(4):482-491. PMID: 28543055.
      View in: PubMed
    10. Matsuo K, Machida H, Ragab OM, Takiuchi T, Pham HQ, Roman LD. Extent of pelvic lymphadenectomy and use of adjuvant vaginal brachytherapy for early-stage endometrial cancer. Gynecol Oncol. 2017 03; 144(3):515-523. PMID: 28017306.
      View in: PubMed
    11. Patel S, Demanes DJ, Ragab O, Zhang M, Veruttipong D, Nguyen K, Park SJ, Marks L, Pantuck A, Steinberg M, Kamrava M. High-dose-rate brachytherapy monotherapy without androgen deprivation therapy for intermediate-risk prostate cancer. Brachytherapy. 2017 Mar - Apr; 16(2):299-305. PMID: 27965117.
      View in: PubMed
    12. Patel S, Ragab O, Kamrava M. Another solution that enables ablative radiotherapy for large liver tumors: Percutaneous interstitial high-dose rate brachytherapy. Cancer. 2016 09 01; 122(17):2766. PMID: 27244104.
      View in: PubMed
    13. Patel S, Ragab O, Kamrava M. Real-time image guidance for gynecologic brachytherapy? Radiother Oncol. 2016 09; 120(3):542-543. PMID: 27056625.
      View in: PubMed
    14. Patel S, Ragab O, Demanes DJ, Chen AM, Kamrava M. Brachytherapy: Where Has It Gone…Again? J Clin Oncol. 2016 Apr 01; 34(10):1155. PMID: 26884564.
      View in: PubMed
    15. Le PV, Tan O, Chopra V, Francis BA, Ragab O, Varma R, Huang D. Regional correlation among ganglion cell complex, nerve fiber layer, and visual field loss in glaucoma. Invest Ophthalmol Vis Sci. 2013 Jun 21; 54(6):4287-95. PMID: 23716631.
      View in: PubMed
    16. Nath DS, Nussbaum DP, Yurko C, Ragab OM, Shin AJ, Kumar SR, Starnes VA, Wells WJ. Pulmonary homograft monocusp reconstruction of the right ventricular outflow tract: outcomes to the intermediate term. Ann Thorac Surg. 2010 Jul; 90(1):42-9. PMID: 20609745.
      View in: PubMed
    17. Ragab O, Landay M, Shriki J. Complete cloacal duplication imaged before and during pregnancy. J Radiol Case Rep. 2009; 3(11):24-8. PMID: 22470627.
      View in: PubMed
    18. Sechi M, Derudas M, Dallocchio R, Dessì A, Bacchi A, Sannia L, Carta F, Palomba M, Ragab O, Chan C, Shoemaker R, Sei S, Dayam R, Neamati N. Design and synthesis of novel indole beta-diketo acid derivatives as HIV-1 integrase inhibitors. J Med Chem. 2004 Oct 07; 47(21):5298-310. PMID: 15456274.
      View in: PubMed
    19. Shahin AA, el-Mofty SA, el-Sheikh EA, Hafez HA, Ragab OM. Power Doppler sonography in the evaluation and follow-up of knee involvement in patients with juvenile idiopathic arthritis. Z Rheumatol. 2001 Jun; 60(3):148-55. PMID: 11475602.
      View in: PubMed
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