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Michael Lawton, M.D.

Vascular neurosurgeon

Dr. Michael T. Lawton is the chief of Vascular Neurosurgery and specializes in the surgical treatment of aneurysms, arteriovenous malformations (AVMs), arteriovenous fistulas, cavernous malformations and cerebral revascularization, including carotid endarterectomy. As chief of the busiest vascular neurosurgery service on the West Coast for over 15 years, he has surgically treated over 3,000 brain aneurysms and over 600 AVMs. He is also trained in the endovascular treatment of aneurysms.

His research at the Center for Neurological Cerebrovascular Research (CCR) investigates the physiology of cerebral circulation and the pathophysiology of vascular malformations. His basic science investigations study the formation, underlying genetics and rupture of brain AVMs, as well as hemodynamics, rupture and computational modeling of brain aneurysms. His clinical investigations study the anatomy of microsurgical approaches to vascular lesions and efficacy of aneurysm, AVM and bypass surgery.

Lawton is the Tong-Po Kan endowed chair, a professor of neurological surgery and vice chairman of the department. He received numerous research awards as a resident and received the Young Neurosurgeon Award from the World Federation of Neurosurgical Societies and the International Congress of Neurological Surgery. Lawton graduated with honors from Brown University with an undergraduate degree in biomedical engineering. He earned a medical degree at the Johns Hopkins University School of Medicine and completed a general surgery internship at Johns Hopkins Hospital. He completed a neurosurgical residency and fellowship in cerebrovascular and skull-base surgery at the Barrow Neurological Institute.


HHT Center of Excellence
185 Berry St., Suite 180, Lobby 6
San Francisco, CA 94107
Phone: (415) 353-8867
Fax: (415) 353-3158

Hours: Monday to Friday,
8 a.m. – 4:30 p.m.

Neurosurgery Clinic
400 Parnassus Ave., Eighth Floor
San Francisco, CA 94143
Phone: (415) 353-7500
Fax: (415) 353-2889

Hours: Monday to Friday
8 a.m. – 4:30 p.m.

Neurovascular Disease and Stroke Center
400 Parnassus Ave., Eighth Floor
San Francisco, CA 94143
Phone: (415) 353-8897
Fax: (415) 353-8705

Hours: Monday to Friday
8:30 a.m. – 5 p.m.

Conditions & Treatments

More about Michael Lawton

Additional Languages



Johns Hopkins School of Medicine 1990


Johns Hopkins Hospital, General Surgery 1991


St. Joseph's Hospital, Cerbrovascular/Skull Base Surgery 1996
St. Joseph's Hospital, Neurological Surgery 1997

Selected Research and Publications

  1. Choudhri O, Ivan ME, Lawton MT. Transvenous Approach to Intracranial Arteriovenous Malformations: Challenging the Axioms of Arteriovenous Malformation Therapy? Neurosurgery. 2015 Oct; 77(4):644-52.
  2. Etminan N, Brown RD, Beseoglu K, Juvela S, Raymond J, Morita A, Torner JC, Derdeyn CP, Raabe A, Mocco J, Korja M, Abdulazim A, Amin-Hanjani S, Al-Shahi Salman R, Barrow DL, Bederson J, Bonafe A, Dumont AS, Fiorella DJ, Gruber A, Hankey GJ, Hasan DM, Hoh BL, Jabbour P, Kasuya H, Kelly ME, Kirkpatrick PJ, Knuckey N, Koivisto T, Krings T, Lawton MT, Marotta TR, Mayer SA, Mee E, Pereira VM, Molyneux A, Morgan MK, Mori K, Murayama Y, Nagahiro S, Nakayama N, Niemelä M, Ogilvy CS, Pierot L, Rabinstein AA, Roos YB, Rinne J, Rosenwasser RH, Ronkainen A, Schaller K, Seifert V, Solomon RA, Spears J, Steiger HJ, Vergouwen MD, Wanke I, Wermer MJ, Wong GK, Wong JH, Zipfel GJ, Connolly ES, Steinmetz H, Lanzino G, Pasqualin A, Rüfenacht D, Vajkoczy P, McDougall C, Hänggi D, LeRoux P, Rinkel GJ, Macdonald RL. The unruptured intracranial aneurysm treatment score: A multidisciplinary consensus. Neurology. 2015 Sep 8; 85(10):881-9.
  3. Zygourakis CC, Valencia V, Moriates C, Catschegn S, Afshar A, Bozic K, Hoo KS, Goldberg A, Boscardin C, Gonzales R, Pitts LH, Lawton MT. 117 OR Score: Reducing Operating Room Costs Through a Hospital-Wide Price Transparency Initiative. Neurosurgery. 2015 Aug; 62 Suppl 1:202-3.
  4. Owen CM, Montemurro N, Lawton MT. Microsurgical Management of Residual and Recurrent Aneurysms After Coiling and Clipping: An Experience With 97 Patients. Neurosurgery. 2015 Aug; 62 Suppl 1:92-102.
  5. Davies JM, Lawton MT. "Picket Fence" clipping technique for large and complex aneurysms. Neurosurg Focus. 2015 Jul; 39 Video Suppl 1:V17.
  6. Miousse IR, Currie R, Datta K, Ellinger-Ziegelbauer H, French JE, Harrill AH, Koturbash I, Lawton M, Mann D, Meehan RR, Moggs JG, O'Lone R, Rasoulpour RJ, Pera RA, Thompson K. Importance of investigating epigenetic alterations for industry and regulators: An appraisal of current efforts by the Health and Environmental Sciences Institute. Toxicology. 2015 Sep 1; 335:11-9.
  7. Benet A, Rincon-Torroella J, Lawton MT. Microsurgical clipping of a superior hypophyseal artery aneurysm: part 1: intradural anterior clinoidectomy: 3-dimensional operative video. Neurosurgery. 2015 Jun; 11 Suppl 1:358.
  8. Benet A, Rincon-Torroella J, Lawton MT. Microsurgical clipping of a superior hypophyseal artery aneurysm: part 2: distal dural ring dissection and clipping: 3-dimensional operative video. Neurosurgery. 2015 Jun; 11 Suppl 1:359.
  9. Conger A, Kulwin C, Lawton MT, Cohen-Gadol AA. Diagnosis and evaluation of intracranial arteriovenous malformations. Surg Neurol Int. 2015; 6:76.
  10. Abla AA, Nelson J, Kim H, Hess CP, Tihan T, Lawton MT. Silent arteriovenous malformation hemorrhage and the recognition of "unruptured" arteriovenous malformation patients who benefit from surgical intervention. Neurosurgery. 2015 May; 76(5):592-600.
  11. Shimada K, Furukawa H, Wada K, Korai M, Wei Y, Tada Y, Kuwabara A, Shikata F, Kitazato KT, Nagahiro S, Lawton MT, Hashimoto T. Protective Role of Peroxisome Proliferator-Activated Receptor-? in the Development of Intracranial Aneurysm Rupture. Stroke. 2015 Jun; 46(6):1664-72.
  12. Choquet H, Pawlikowska L, Lawton MT, Kim H. Genetics of cerebral cavernous malformations: current status and future prospects. J Neurosurg Sci. 2015 Apr 22.
  13. Davies JM, Kim H, Lawton MT. Surgical treatment of cerebral cavernous malformations. J Neurosurg Sci. 2015 Sep; 59(3):255-70.
  14. Abla AA, Lawton MT. Variability in Endovascular Treatment of Delayed Cerebral Ischemia and Vasospasm in Aneurysmal Subarachnoid Hemorrhage. World Neurosurg. 2015 Sep; 84(3):625-6.
  15. Kim H, Nelson J, Krings T, terBrugge KG, McCulloch CE, Lawton MT, Young WL, Faughnan ME. Hemorrhage Rates From Brain Arteriovenous Malformation in Patients With Hereditary Hemorrhagic Telangiectasia. Stroke. 2015 Apr 9.
  16. Pawlikowska L, Nelson J, Guo DE, McCulloch CE, Lawton MT, Young WL, Kim H, Faughnan ME. The ACVRL1 c.314-35A>G polymorphism is associated with organ vascular malformations in hereditary hemorrhagic telangiectasia patients with ENG mutations, but not in patients with ACVRL1 mutations. Am J Med Genet A. 2015 Apr 2.
  17. Palace J, Duddy M, Bregenzer T, Lawton M, Zhu F, Boggild M, Piske B, Robertson NP, Oger J, Tremlett H, Tilling K, Ben-Shlomo Y, Dobson C. Effectiveness and cost-effectiveness of interferon beta and glatiramer acetate in the UK Multiple Sclerosis Risk Sharing Scheme at 6 years: a clinical cohort study with natural history comparator. Lancet Neurol. 2015 May; 14(5):497-505.
  18. Conger A, Kulwin C, Lawton MT, Cohen-Gadol AA. Endovascular and microsurgical treatment of cerebral arteriovenous malformations: Current recommendations. Surg Neurol Int. 2015; 6:39.
  19. Shimada K, Furukawa H, Wada K, Wei Y, Tada Y, Kuwabara A, Shikata F, Kanematsu Y, Lawton MT, Kitazato KT, Nagahiro S, Hashimoto T. Angiotensin-(1-7) protects against the development of aneurysmal subarachnoid hemorrhage in mice. J Cereb Blood Flow Metab. 2015 Mar 11.
  20. Garcia RM, Ivan ME, Lawton MT. Brainstem cavernous malformations: surgical results in 104 patients and a proposed grading system to predict neurological outcomes. Neurosurgery. 2015 Mar; 76(3):265-78.

Publications are derived from MEDLINE/PubMed and provided by UCSF Profiles, a service of the Clinical & Translational Science Institute (CTSI) at UCSF. Researchers can make corrections and additions to their publications by logging on to UCSF Profiles.