Education

  • University of California, Los Angeles, B.S., 1990, Biology
  • University of California, San Diego, M.D./Ph.D., 1998, Biomedical Sciences, Medicine
  • University of California, San Francisco, General Surgery
  • University of California, San Francisco, 2002, Pathology University of California, San Francisco, 2003, Surgical Pathology

Honors & Awards

  • 1990
    Phi Beta Kappa
  • 1992
    Lucille P. Markey Predoctoral Fellowship
  • 1998
    Student Surgical Research Award, Association of Academic Surgery
  • 2011
    Excellence in Teaching Award in Medical Education, UCSF Academy of Medical Educators

Selected Publications

  1. Mitchell DK, Brewster K, Makri SC, Khan J, Albright EA, Horvai A, Mang H, Lu Q, Dixon SAH, White E, Saadatzadeh MR, Bijangi-Vishehsaraei K, Gampala S, Hickey BE, Leffew H, Li X, Jiang L, Ciesielski MD, Bessler WK, Collier CD, Cohen-Gadol A, Fishel ML, Pratilas CA, Pollok KE, Angus SP, Rhodes S, Clapp W. DLK1 Distinguishes Subsets of NF1-Associated Malignant Peripheral Nerve Sheath Tumors with Divergent Molecular Signatures. Clin Cancer Res. 2025 May 15; 31(10):1988-2009.  View on PubMed
  2. Fritchie K, Ameline B, Andrei V, Charville G, Hornick JL, Meredith DM, John I, Michal M, Pancsa T, Kilpatrick SE, Reith J, Wang Z, Horvai A, Gross J, Sumathi V, Davis JL, Purgina B, Raymond DP, Ilaslan H, Chrisinger J, Din NU, Hung YP, Nielsen GP, Mogler C, Papke DJ, Baumhoer D. Malignant Chondroblastoma: An Epigenetically Distinct Subtype of Chondroblastoma with a Predilection for the Skeletally Mature. Mod Pathol. 2025 May 08; 100790.  View on PubMed
  3. Sanchez NG, Horvai AE, Zacco E, Monga V. Human chorionic gonadotropin-secreting osteosarcoma. BMJ Case Rep. 2025 Jan 14; 18(1).  View on PubMed
  4. Schulte BC, Hwang C, Horvai AE, Olivier T. When destiny doesn't pan out: Implications for the treatment of sarcomas after the agnostic approval of trastuzumab deruxtecan. Cancer. 2024 Dec 01; 130(23):4020-4024.  View on PubMed
  5. Mitchell DK, Burgess B, White EE, Smith AE, Sierra Potchanant EA, Mang H, Hickey BE, Lu Q, Qian S, Bessler W, Li X, Jiang L, Brewster K, Temm C, Horvai A, Albright EA, Fishel ML, Pratilas CA, Angus SP, Clapp DW, Rhodes SD. Spatial Gene-Expression Profiling Unveils Immuno-oncogenic Programs of NF1-Associated Peripheral Nerve Sheath Tumor Progression. Clin Cancer Res. 2024 03 01; 30(5):1038-1053.  View on PubMed
  6. Janak Mukherji, Dana Mitchell, Emily White, Breanne Burgess, Abbi Smith, Eric Albright, Jaffar Khan, Andrew Horvai, D. Wade Clapp, Steve Angus, Steven Rhodes. Deciphering the Immune Microenvironment of NF1-associated Peripheral Nerve Sheath Tumors: Identifying Early Biomarkers of Disease Progression and Malignant Transformation. Proceedings of IMPRS. 2024 Jan 11; 6(1).  View on PubMed
  7. Boone SL, Horvai AE, Zimel MN, Brown R, Link TM, McGill KC. Botryomycosis: a rare mimic of sarcoma as an initial presentation of acquired immunodeficiency syndrome. Skeletal Radiol. 2024 Oct; 53(10):2315-2320.  View on PubMed
  8. Qorbani A, Horvai A. Atypical Spindle Cell/Pleomorphic Lipomatous Tumor. Surg Pathol Clin. 2024 Mar; 17(1):97-104.  View on PubMed
  9. Neal K. Bennett, Hiroki J. Nakaoka, Danny Laurent, Ross Okimoto, Yoshitaka Sei, Andrew E. Horvai, Trever G. Bivona, Georgios Batsios, Pavithra Viswanath, Johanna ten Hoeve, Thomas G. Graeber, Ken Nakamura, Jean L. Nakamura. Abstract 1161: Primary and metastatic tumors exhibit systems-level differences in dependence on mitochondrial respiratory function. Cancer Research. 2023 Apr 4; 83(7_Supplement):1161-1161.  View on PubMed
  10. Bahceci DH, Grenert JP, Jordan RCK, Horvai AE. Genomic Profiling of the Craniofacial Ossifying Fibroma by Next-Generation Sequencing. Head Neck Pathol. 2023 Sep; 17(3):722-730.  View on PubMed
  11. Terry M, Reis G, Horvai A, Pekmezci M, Perry A. Sarcomatous Transformation of a Medically Treated Lactotroph Pituitary Neuroendocrine Tumor? Endocr Pathol. 2023 03; 34(1):161-163.  View on PubMed
  12. Bharadwaj UU, Akkaya Z, Horvai AE, Link TM, Gassert FG. Calcifying fibrous tumor: a rare case in the foot. Skeletal Radiol. 2023 Aug; 52(8):1619-1623.  View on PubMed
  13. Bennett NK, Nakaoka HJ, Laurent D, Okimoto RA, Sei Y, Horvai AE, Bivona TG, Ten Hoeve J, Graeber TG, Nakamura K, Nakamura JL. Primary and metastatic tumors exhibit systems-level differences in dependence on mitochondrial respiratory function. PLoS Biol. 2022 09; 20(9):e3001753.  View on PubMed
  14. Neumann NM, Cornelia Ding CK, Borgen A, Corvera CU, North JP, Qorbani A, Horvai AE. Primary Cutaneous Malignant Perivascular Epithelioid Cell Tumor Mimicking Undifferentiated Pleomorphic Sarcoma: A Report of a Rare Entity. Am J Dermatopathol. 2022 Oct 01; 44(10):768-773.  View on PubMed
  15. Bahceci DH, Jordan RCK, Horvai AE. MDM2 Gene Amplification and Expression of MDM2 and CDK4 are Rare in Ossifying Fibroma of Craniofacial Bones. Head Neck Pathol. 2022 Dec; 16(4):991-997.  View on PubMed
  16. Bowman CJ, Medeiros F, Fadare O, Sangoi AR, Horvai AE, Devine WP, McCluggage WG, Rabban JT. ALK Immunoexpression is Specific for Inflammatory Myofibroblastic Tumor Among Vulvovaginal Mesenchymal Neoplasms. Int J Gynecol Pathol. 2023 Jan 01; 42(1):1-10.  View on PubMed
  17. Sloan EA, Gupta R, Koelsche C, Chiang J, Villanueva-Meyer JE, Alexandrescu S, Eschbacher JM, Wang W, Mafra M, Ud Din N, Carr-Boyd E, Watson M, Punsoni M, Oviedo A, Gilani A, Kleinschmidt-DeMasters BK, Coss DJ, Lopes MB, Reddy A, Mueller S, Cho SJ, Horvai AE, Lee JC, Pekmezci M, Tihan T, Bollen AW, Rodriguez FJ, Ellison DW, Perry A, von Deimling A, Chang SM, Berger MS, Solomon DA. Intracranial mesenchymal tumors with FET-CREB fusion are composed of at least two epigenetic subgroups distinct from meningioma and extracranial sarcomas. Brain Pathol. 2022 07; 32(4):e13037.  View on PubMed
  18. H. Vasudevan, C.H. Lucas, W.C. Chen, S. Magill, S.E. Braunstein, A. Reddy, A. Perry, A.E. Horvai, L. Jacques, F. McCormick, M. Pekmezci, D. Raleigh. Multiplatform Genomic Profiling and Immunohistochemistry Identify Prognostic and Predictive Signatures in Malignant Peripheral Nerve Sheath Tumors (MPNSTs). International Journal of Radiation Oncology • Biology • Physics. 2021 Nov 1; 111(3):e256-e257.  View on PubMed
  19. Lucas CG, Grenert JP, Horvai A. Targeted Next-Generation Sequencing Identifies Molecular and Genetic Events in Dedifferentiated Chondrosarcoma. Arch Pathol Lab Med. 2021 08 01; 145(8):1009-1017.  View on PubMed
  20. Joseph NM, McGill KC, Horvai AE. Genomic Profiling of Low-grade Intramedullary Cartilage Tumors Can Distinguish Enchondroma From Chondrosarcoma. Am J Surg Pathol. 2021 06 01; 45(6):812-819.  View on PubMed

Go to UCSF Profiles, powered by CTSI