25 of the Best Oncologists Near Me in orange, CA

Dr. Mihaela C. Cristea is a UCI Health hematologist oncologist who specializes in the treatment of gynecologic cancers.She earned her medical degree from the University of Medicine and Pharmacy of Iasi, Romania. She completed a residency in internal medicine at Monmouth Medical Center in Long Branch, N.J. She then completed a fellowship in medical oncology at the University of Florida - Health Science Center, Jacksonville.Her research focuses on evaluating novel therapies to improve patient outcomes in gynecologic malignancies. She has contributed to over 50 peer-reviewed publications in prominent medical journals.Cristea, who also speaks Romanian, brings extensive experience to UCI Health Chao Family Comprehensive Cancer Center. Dr. Cristea is highly rated in 25 conditions, according to our data. Her clinical expertise encompasses Ovarian Cancer, Endometrial Cancer, Lung Cancer, Virilizing Ovarian Tumor, and Endoscopy.

Ramez Eskander is an Oncologist practicing medicine in Orange, California. Dr. Eskander is highly rated in 12 conditions, according to our data. His clinical expertise encompasses Endometrial Cancer, Ovarian Cancer, Cervical Cancer, Splenectomy, and Salpingo-Oophorectomy.

Rana Mckay is an Oncologist practicing medicine in La Jolla, California. Dr. Mckay is highly rated in 22 conditions, according to our data. Her clinical expertise encompasses Renal Cell Carcinoma (RCC), Prostate Cancer, Familial Prostate Cancer, Prostatectomy, and Nephrectomy.

Joshua Cohen is an Oncologist practicing medicine in Anchorage, California. Dr. Cohen is highly rated in 20 conditions, according to our data. His clinical expertise encompasses Endometrial Cancer, Ovarian Cancer, Malignant Mixed Mullerian Tumor, Hernia Surgery, and Lymphadenectomy. Dr. Cohen is currently accepting new patients.

Krishnansu Tewari is an Oncologist and an Obstetrics and Gynecologist practicing medicine in Orange, California. Dr. Tewari is highly rated in 19 conditions, according to our data. His clinical expertise encompasses Cervical Cancer, Ovarian Cancer, Endometrial Cancer, Hysterectomy, and Lymphadenectomy. Dr. Tewari is board certified in American Board Of Obstetrics And Gynecology - Obstetrics And Gynecology and American Board Of Obstetrics And Gynecology - Gynecologic Oncology. Dr. Tewari is currently accepting new patients.

Dr. Robert E. Bristow is a board-certified UCI Health gynecologic oncologist and nationally recognized leader in ovarian cancer surgery and the treatment of endometrial and other gynecologic cancers.Bristow, who is chair of the UCI School of Medicine's Department of Obstetrics & Gynecology, also holds the Philip J. DiSaia endowed chair in gynecologic oncology. He was awarded the 2022 Innovation Award by the Society for Gynecologic Oncology for his impact on the prevention, diagnosis and treatment of gynecologic cancers.He earned his medical degree at the Keck School of Medicine at USC in Los Angeles, where he was elected to the prestigious Alpha Omega Alpha Honor Medical Society. Next, he completed an internship and residency in obstetrics and gynecology at Johns Hopkins School of Medicine in Baltimore, Md., and a fellowship gynecologic oncology at the David Geffen School of Medicine at UCLA in Los Angeles.He also holds a masters in business administration from Johns Hopkins University, where he served on the medical school's faculty in oncology, gynecology and obstetrics for 12 years before joining UCI Health and the UCI School of Medicine as chief of the Division of Gynecologic Oncology in 2010.Bristow's research interests include healthcare outcomes and disparities in care for women with cancer of the ovary and endometrium. He is the author or co-author of more than 175 peer-reviewed research articles published in major journals, including theAmerican Journal of Obstetrics and Gynecology,Gynecologic Oncologyand theInternational Journal of Gynecologic Cancer. He also is co-author of leading textbooks on surgery for ovarian and other gynecologic cancers. Dr. Bristow is highly rated in 18 conditions, according to our data. His clinical expertise encompasses Ovarian Cancer, Ovarian Carcinosarcoma, Sertoli-Leydig Cell Tumor, Oophorectomy, and Hysterectomy. Dr. Bristow is board certified in American Board Of Obstetrics And Gynecology - Obstetrics And Gynecology and American Board Of Obstetrics And Gynecology - Gynecologic Oncology. Dr. Bristow is currently accepting new patients.

Dr. Mohammadbagher (Mo) Ziari is a board-certified UCI Health hematologist and medical oncologist who specializes in the diagnosis, treatment and management of solid tumors as well as benign and malignant hematological conditions.He earned his medical degree at Shiraz University of Medical Sciences in Shiraz, Iran. Next, he completed a residency in internal medicine at Saint Louis University School of Medicine in Saint Louis, Mo., followed by fellowship training in hematology and oncology at the University of Texas Southwestern in Dallas.Ziari delivers leading-edge cancer therapies, including chemotherapy, endocrine therapy, targeted therapy, monoclonal antibodies and immunotherapy. He is the author of numerous peer-reviewed journal articles.Nickname: Mo. Dr. Ziari is highly rated in 18 conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Breast Cancer, and Paget Disease of the Breast. Dr. Ziari is board certified in American Board Of Internal Medicine - Hematology and American Board Of Internal Medicine - Medical Oncology.

Angelique Richardson is an Oncologist practicing medicine in La Jolla, California. Dr. Richardson is highly rated in 4 conditions, according to our data. Her clinical expertise encompasses Breast Cancer, Paget Disease of the Breast, Inflammatory Breast Cancer, and Angiosarcoma.

"Dr. Lauren C. Pinter-Brown is a board-certified, fellowship-trained UCI hematologist-oncologist who specializes in the diagnosis and treatment of patients with lymphomas.A nationally recognized expert, Pinter-Brown has a longstanding interest in malignant lymphoma, with a particular focus on T-cell and skin lymphomas. Her clinical interests also include antiphospholipid, B-cell lymphoma, Hodgkin's lymphoma, mycosis fungoides, non-Hodgkins lymphoma, stem-cell transplant and Waldenstrom's disease.She her medical degree at the David Geffen School of Medicine at UCLA Medical School, followed by an internship and residency in internal medicine at Harbor-UCLA Medical Center. She completed a fellowship in hematology and oncology at the Keck School of Medicine at USC.A prolific clinical investigator, Pinter-Brown has made important contributions to several clinical trials that led to approval of new drugs for the treatment of T-cell lymphoma. Her research focus is on optimizing treatment options for patients with lymphoma, especially cutaneous and T-cell lymphomas. Her primary goal is to care for patients through diagnosis, treatment and beyond and to ensure that they are able ""to live their best life.""". Dr. Pinter-Brown is highly rated in 27 conditions, according to our data. Her clinical expertise encompasses T-Cell Lymphoma, Peripheral T-Cell Lymphoma, Non-Hodgkin Lymphoma, Cutaneous T-Cell Lymphoma (CTCL), and Bone Marrow Transplant. Dr. Pinter-Brown is board certified in American Board Of Internal Medicine - Hematology, American Board Of Internal Medicine - Medical Oncology, and American Board Of Internal Medicine - Internal Medicine.

Dr. Misagh Karimi is a board-certified hematologist and oncologist who specializes in the treatment of gastrointestinal cancers.Karimi earned his medical degree at George Washington University School of Medicine and Health Sciences in Washington, D.C. At the UC Irvine School of medicine, he completed an internship and residency in internal medicine, followed by fellowships in hematology-oncology and clinical research. He served as an assistant professor at the medical school before joining the Knight Cancer Institute at Oregon Health & Science University in Portland. Before rejoining UCI Health and the School of Medicine, served as an oncologist with City of Hope. Dr. Karimi is highly rated in 27 conditions, according to our data. His clinical expertise encompasses Breast Cancer, Familial Colorectal Cancer, Colorectal Cancer, and Paget Disease of the Breast. Dr. Karimi is board certified in American Board Of Internal Medicine - Hematology and American Board Of Internal Medicine - Medical Oncology.

Dr. Deepa Jeyakumar is a board-certified UCI Health hematologist-oncologist who specializes in the diagnosis and treatment of blood cancers, bone marrow transplantation and stem-cell therapy. Her clinical focus is on treating patients with leukemias, lymphomas, myelodysplastic syndromes and myelomas.Jeyakumar earned her medical degree at Temple University’s Lewis Katz School of Medicine in Philadelphia, PA. She completed a residency in internal medicine at the University of Illinois Medical Center in Chicago, followed by a fellowships in hematology/oncology at Tufts Medical Center in Boston, Mass., and bone marrow transplantation at Stanford University in Palo Alto, Calif.She is the author or co-author of numerous publications, posters and abstracts, as well as a chapter on acute myelogenous leukemia in a leading book on care for cancer survivors. Dr. Jeyakumar is highly rated in 25 conditions, according to our data. Her clinical expertise encompasses Acute Myeloid Leukemia (AML), Acute Lymphoblastic Leukemia (ALL), Chronic T-Cell Leukemia (CTCL), Bone Marrow Aspiration, and Bone Marrow Transplant. Dr. Jeyakumar is board certified in American Board Of Internal Medicine - Hematology and American Board Of Internal Medicine - Medical Oncology.

Dr. Stefan O. Ciurea is a UCI Health hematologist and director of the Hematopoietic Stem Cell Transplantation and Cellular Therapy Program at the Chao Family Comprehensive Cancer Center.Ciurea earned his medical degree at Grigore T. Popa University of Medicine and Pharmaceuticals in Iasi, Romania. He completed an internal medicine residency at UPMC Pinnacle Harrisburg in Harrisburg, Pa. He then completed a fellowship in hematology-oncology at University of Illinois at Chicago College of Medicine, followed by a fellowship in stem cell transplantation and cellular therapy at the University of Texas MD Anderson Cancer Center in Houston.Before joining the Chao Family Comprehensive Cancer Center to lead its program in hematopoietic stem cell transplantation and cellular therapy, Ciurea served for more than a decade on the faculty of the MD Anderson Cancer Center’s Department of Stem Cell Transplantation and Cellular Therapy.Ciurea is the author of more than 150 peer-reviewed publications and more than 10 book chapters. He also has served as principal investigator on multiple clinical trials, including investigator-initiated trials. He has been invited to speak at more than 50 meetings and conferences around the world, including as keynote speaker. Dr. Ciurea is highly rated in 22 conditions, according to our data. His clinical expertise encompasses Acute Myeloid Leukemia (AML), Graft Versus Host Disease (GvHD), Leukemia, Bone Marrow Transplant, and Bone Marrow Aspiration. Dr. Ciurea is board certified in American Board Of Internal Medicine - Hematology.

Dr. Edward M. Uchio is a board-certified UCI Health urologist who specializes in the diagnosis and treatment of genitourinary tract malignancies, including prostate, bladder and testicular cancers.His clinical expertise includes all areas of urologic oncology and he is skilled in the use of laparoscopic, robot-assisted and minimally invasive techniques — including cryoablation, radiofrequency and high-intensity focused ultrasound — as well as newer technologies and therapies that are only available in clinical trials. He also uses a new, more exacting imaging technology that combines magnetic resonance imaging with real-time, three-dimensional ultrasound to perform more accurate prostate biopsies.Uchio earned his medical degree at the UCI School of Medicine followed by a residency in urology at the University of Washington School of Medicine in Seattle. He completed a fellowship in urologic oncology at the National Cancer Institute (NCI) in Bethesda, Md., where his laboratory focus was on hereditary renal cancer syndromes such as von Hippel Lindau disease.He is the director of clinical trial research for the School of Medicine's Department of Urology, and he been the principal investigator for more than 25 clinical studies, particularly in the treatment of advanced prostate cancer.. He has given presentations internationally on the molecular basis of renal malignancies and is the author of numerous publications and book chapters on urologic cancers. Dr. Uchio is highly rated in 22 conditions, according to our data. His clinical expertise encompasses Bladder Cancer, Prostate Cancer, Non-Muscle Invasive Bladder Cancer, Aquablation, and Prostatic Artery Embolization.

Dr. Nataliya Mar is a board-certified UCI medical oncologist who specializes in genitourinary malignancies including prostate, bladder, renal and testicular cancer.Mar received her medical degree from SUNY Downstate Medical Center in New York City, N.Y., where she also completed a residency in internal medicine at Lenox Hill Hospital. Next she completed a fellowship in hematology and oncology at the University of Connecticut Health Center in Farmington, Conn.In addition to delivering patient care, Mar is involved in the design and supervising of clinical trials at the UCI Health Chao Family Comprehensive Cancer Center. She has published several articles in peer-reviewed journals related to her work. Dr. Mar is highly rated in 18 conditions, according to our data. Her clinical expertise encompasses Urothelial Cancer, Muscle Invasive Bladder Cancer, Bladder Cancer, Renal Cell Carcinoma (RCC), and Orchiectomy.

Dr. Arash Rezazadeh Kalebasty is a board-certified UCI Health medical oncologist who specializes in the diagnosis and treatment of genitourinary cancers. His clinical interests include immunotherapy and orther targeted therapies to treat cancers of the prostate, bladder, kidney and testes.He earned his medical degree at Shahid Beheshti University of Medical Sciences in Tehran, Iran. He completed a residency in internal medicine and a fellowship in medical oncology and hematology at Kentucky’s University of Louisville School of Medicine.Rezazadeh has served as principal investigator in numerous clinical trials for genitourinary malignancies, particularly cancers of the bladder and prostate. Some of these trials have led to the approval of novel first-in-class cancer therapies.He has also presented his studies at numerous national and international cancer conferences and has published extensively in his field, with over 100 publications indexed on PubMed. He is a member of the American Society of Clinical Oncology, the European Society for Medical Oncology and the NRG Oncology Genitourinary Committee. He is also an editorial reviewer for the publicationsBladder CancerandAnnals of Case Reports. Dr. Kalebasty is highly rated in 15 conditions, according to our data. His clinical expertise encompasses Familial Prostate Cancer, Urothelial Cancer, Renal Cell Carcinoma (RCC), Orchiectomy, and Nephrectomy. Dr. Kalebasty is board certified in American Board Of Internal Medicine - Medical Oncology.

Dr. Jill H. Tseng is a board-certified UCI Health gynecologic oncologist who specializes in the treatment of gynecologic cancers.Her clinical expertise includes robot-assisted approaches to highly complex, abdominopelvic surgery for ovarian cancer and other gynecologic malignancies.Tseng earned her medical degree at the University of Toledo College of Medicine and Life Sciences in Toledo, Ohio. She completed a residency in gynecology and obstetrics at Johns Hopkins University School of Medicine in Baltimore, Md., where she served as chief resident. Next, she completed a fellowship in gynecologic oncology at Memorial Sloan Kettering Cancer Center in New York City.Her research interests include the peri-operative care of women undergoing gynecologic surgery as well as novel therapeutics for the treatment of gynecologic cancers. She is active in clinical trial enrollment and oversight. She also is the author or co-author of more than two dozen peer-reviewed articles in major journals. Dr. Tseng is highly rated in 14 conditions, according to our data. Her clinical expertise encompasses Ovarian Cancer, Endometrial Cancer, Ovarian Carcinosarcoma, Vaginectomy, and Hernia Surgery. Dr. Tseng is board certified in American Board Of Obstetrics And Gynecology - Obstetrics And Gynecology and American Board Of Obstetrics And Gynecology - Gynecologic Oncology. Dr. Tseng is currently accepting new patients.

Dr. Catherine C. Coombs is a board-certified UCI Health hematologist and oncologist who specializes in the management of a hematologic malignancies.Her primary expertise is chronic lymphocytic leukemia and small lymphocytic lymphoma (CLL/SLL), which has been her research focus for more than a decade as a principal investigator of numerous clinical trials of novel agents that have improved the care of these patients.Coombs earned her medical degree at the University of Cincinnati College of Medicine in Cincinnati, Ohio. She completed a residency in internal medicine at Duke University Medical Center in Durham, N.C., followed by a fellowship in hematology and oncology at Memorial Sloan Kettering Cancer Center in New York City.She comes to UCI Health and the UCI School of Medicine after serving on the faculty at the University of North Carolina in Chapel Hill, N.C., where she spent six years developing a CLL program before relocating to Southern California to be closer to family.Coombs' research is devoted to developing new drugs and novel drug combinations to treat CLL. She also has an interest in precursor conditions that can lead to blood cancers, including monoclonal B cell lymphocytosis, clonal cytopenia of undetermined significance and clonal hematopoiesis of indeterminate potential.She sees patients inOrange. Dr. Coombs is highly rated in 14 conditions, according to our data. Her clinical expertise encompasses Chronic Lymphocytic Leukemia (CLL), Chronic B-Cell Leukemia (CBCL), Leukemia, Bone Marrow Aspiration, and Bone Marrow Transplant. Dr. Coombs is board certified in American Board Of Internal Medicine - Hematology and American Board Of Internal Medicine - Medical Oncology.

Dr. Kiran Naqvi is a board-certified UCI Health hematologic oncologist. Her clinical focus is on acute myeloid leukemia, myelodysplastic syndrome, chronic myelogenous leukemia, bone marrow aspiration and bone marrow transplantation.She earned her medical degree from Dow University of Health Sciences in Karachi, Pakistan. She completed a residency in internal medicine at the University of Illinois Urbana-Champaign and the Carle Foundation Hospital in Urbana, Ill., followed by fellowships in hematology-oncology at Baylor College of Medicine and the University of Texas MD Anderson Cancer Center, both in Houston, Texas. Dr. Naqvi is highly rated in 14 conditions, according to our data. Her clinical expertise encompasses Acute Myeloid Leukemia (AML), Chronic Myelogenous Leukemia (CML), Myelodysplastic Syndrome (MDS), Leukemia, and Bone Marrow Aspiration. Dr. Naqvi is board certified in American Board Of Internal Medicine - Hematology, American Board Of Internal Medicine - Medical Oncology, and American Board Of Internal Medicine - Internal Medicine.

Dr. Misako Nagasaka is a board-certified UCI Health oncologist who specializes in the diagnosis and treatment of lung and thyroid cancers. Her clinical interests also early-phase clinical trials, medical ethics and survivorship care for patients.She received her medical degree as well as a PhD from St. Marianna University School of Medicine in Kawasaki, Japan. She completed a residency in internal medicine at Mount Sinai Beth Israel Hospital in New York City, followed by a fellowship in hematology and oncology at Wayne State University School of Medicine's Karmanos Cancer Institute in Detroit, Mich.Her research interests include molecular targeted therapy for lung cancer, immunotherapy and ways to improve patient outcomes. Prior to joining UCI Health, she served as an assistant professor and researcher at Wayne State and the Karmanos institute, she was the principal site investigator on more than 20 lung cancer studies.Nagasaka, who is fluent in Japanese, sees patients at the UCI HealthChao Family Comprehensive Cancer Center in Orange. Dr. Nagasaka is highly rated in 13 conditions, according to our data. Her clinical expertise encompasses Non-Small Cell Lung Cancer (NSCLC), Lung Cancer, EGFR Positive Lung Cancer, Small Cell Lung Cancer (SCLC), and Gastrostomy. Dr. Nagasaka is board certified in American Board Of Internal Medicine - Hematology, American Board Of Internal Medicine - Medical Oncology, and American Board Of Internal Medicine - Internal Medicine. Dr. Nagasaka is currently accepting new patients.

Dr. Miguel A. Villalona-Calero is a UCI Health medical oncologist who specializes in lung cancer, early phase clinical trials, the use of genomic-driven therapies and immune system treatments to target cancer.An internationally regarded expert in lung cancer and developmental therapeutics, Villalona-Calero serves as deputy director of the UCI Health Chao Family Comprehensive cancer center. As chief of the UC Irvine School of Medicine's Division of Hematology-Oncology, he leads a faculty of more than 70 hematologists and oncologists, including nationally know specialists in many types of cancer.He earned his medical degree from Universidad Nacional Pedro Henriquez Urena in the Dominican Republic, followed by an internship and internal medicine residency at Kings County Hospital Center and the State University of New York Health Science Center in Brooklyn. He completed fellowships in medical oncology at the University of Minnesota Hospitals & Clinics in Minneapolis and the Roswell Park Cancer Institute in Buffalo, N.Y.He also received fellowship training at the University of Texas’ Institute for Drug Development in San Antonio and in health policy leadership at New York University’s Wagner Graduate School of Public Service in New York City. Before joining UCI Health, he served as director of an early phase therapeutics program at City of Hope in Duarte, Calif.Villalona-Calero is widely known for his work in lung cancer and developmental therapeutics, including the design of more effective anticancer agents. His main area of expertise is in translating laboratory science developments into clinical trials for cancer patients. Most recently, his focus has been on targeting cellular deficiencies in DNA repair and finding new ways to use the immune system to attack cancer cells.The author or co-author of more than 140 peer-reviewed publications, Villalona-Calero has been inducted into the American Association for the Advancement of Science and is a fellow of the American College of Physicians. He has led dozens of clinical trials, including early phase studies funded by the National Cancer Institute (NCI) and the National Institutes of Health (NIH). He currently leads a phase 1 clinical trial for non-small cell lung cancer using enhanced natural killer cells, part of a prestigious NCI and NIH R01 grant for developmental cell therapeutics.Villalona, who is fluent in English and Spanish, sees patients inIrvineandOrange. Dr. Villalona-Calero is highly rated in 13 conditions, according to our data. His clinical expertise encompasses Fanconi Anemia, Congenital Aplastic Anemia, Lung Cancer, and Aplastic Anemia. Dr. Villalona-Calero is board certified in American Board Of Internal Medicine - Medical Oncology.

Dr. Jason A. Zell is a board-certified UCI Health hematology-oncology specialist who focuses on the prevention and treatment of colon and other gastrointestinal cancers.He received his medical degree from Nova Southeastern University, Fort Lauderdale, Fla. He completed his internal medicine residency training and hematology-oncology fellowship at the UCI School of Medicine, via the American Board of Internal Medicine Research Pathway.Zell has received extramural research funding from the National Institutes of Health (NIH) to perform genetic epidemiology-based colorectal cancer research, and is principle investigator or co-investigator for several NIH-funded Phase 2 clinical trials involving patients with gastrointestinal malignancies.Within SWOG, a clinical trials organization of the National Clinical Trials Network, he is the cancer control and prevention liaison to the gastrointestinal committee. Additionally, he is national principal investigator for S0820, a large multicenter, randomized Phase 3 trial involving risk reduction among resected colon cancer patients, which is supported by the NIH National Cancer Institute Division of Cancer Prevention, and conducted by SWOG. He has published more than 70 manuscripts and two book chapters. Dr. Zell is highly rated in 8 conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Colorectal Cancer, Lynch Syndrome, Colonoscopy, and Endoscopy. Dr. Zell is board certified in American Board Of Internal Medicine - Medical Oncology.

Dr. Thomas E. Ahlering restricts his practice to the treatment of prostate cancer, specializing in robot-assisted prostatectomy.Ahlering is not a member of UCI Health University Physicians & Surgeons medical group. He does not accept Medicare or medical insurance plans, and performs his services on a cash-only basis. Dr. Ahlering is highly rated in 4 conditions, according to our data. His clinical expertise encompasses Prostate Cancer, Familial Prostate Cancer, Urinary Incontinence, Prostatectomy, and Hormone Replacement Therapy (HRT). Dr. Ahlering is board certified in American Board Of Urology - Urology.

As a medical oncologist specializing in breast cancer, UCI Health physician Rita S. Mehta, MD, designs individualized treatment plans for each patient. She works in concert with the breast health team at the Chao Family Comprehensive Cancer Center and takes an interest in the physical and emotional well-being of her patients.Mehta is focused on finding a cure for the various types of breast cancer currently identified. She is working on several clinical trials, and has pioneered procedures aimed at reducing the size of tumors before they are surgically removed. Dr. Mehta is highly rated in 4 conditions, according to our data. Her clinical expertise encompasses Breast Cancer, Inflammatory Breast Cancer, Angiosarcoma, and Paget Disease of the Breast.

Timothy Byun is a Hematologist and an Oncologist practicing medicine in Orange, California. Dr. Byun is highly rated in 35 conditions, according to our data. His clinical expertise encompasses Small Cell Lung Cancer (SCLC), Lung Cancer, Pleuropulmonary Blastoma, Large-Cell Immunoblastic Lymphoma, and Bone Marrow Aspiration. Dr. Byun is currently accepting new patients.

Tanya Siddiqi is an Oncologist practicing medicine in Irvine, California. Dr. Siddiqi is highly rated in 33 conditions, according to our data. Her clinical expertise encompasses Chronic Lymphocytic Leukemia (CLL), Chronic B-Cell Leukemia (CBCL), Non-Hodgkin Lymphoma, Bone Marrow Aspiration, and Splenectomy.