Director, Dermatopathology

Director, Podiatric Pathology

  • Board-certified – Dermatopathology by the American Boards of Dermatology and Pathology, and Anatomic and Clinical Pathology by the American Board of Pathology
  • Sub-Specialty Concentration – Lymphoma, Melanocytic Lesions, and Molecular Diagnostics
  • Fellowship – Dermatopathology, The Johns Hopkins University School of Medicine, Baltimore, MD
  • Residency – Chief Resident, Anatomic and Clinical Pathology, The Johns Hopkins Hospital, Baltimore, MD
  • Medical/Graduate School – University of Texas Southwestern Medical School and Graduate School of Biomedical Sciences, Dallas, TX
  • Dr. Hosler is the current President of the Texas Society of Pathologists and Past-President of the North Texas Society of Pathology. He is the Fellowship Director of ProPath’s ACGME-accredited dermatopathology fellowship program and Education Director of ProPath dermatopathology rotations for UT Southwestern Dermatology & Pathology, Baylor University Medical Center Dermatology, and UNTHSC Dermatology residency programs. He has written and lectured widely in the field of dermatopathology, particularly on melanocytic lesions and molecular diagnostics.
  • Joined ProPath in 2006

Original Articles

  1. Task Force/Committee Members, Vidal CI, Sutton A, Armbrect EA, Lee JB, Litzner BR, Hurley MY, Rating Panel, Alam M, Duncan LM, Elston DM, Emanuel PO, Ferringer T, Fung MA, Hosler GA, Lazar AJ, Lowe L, Plaza JA, Robinson JK, Schaffer A. Muir-Torre syndrome appropriate use criteria: effect of patient age on appropriate use scores. J Cutan Pathol. March 2019. doi:10.1111/cup.13459.
  2. Florez-Pollack S, Tseng LC, Kobayashi M, Hosler GA, Ariizumi K, Chong BF. Expansion of myeloid-derived suppressor cells in the peripheral blood and lesional skin of cutaneous lupus patients. J Invest Dermatol. 2019;139(2):478-481.
  3. Task Force/Committee Members, Vidal CI, Armbrect EA, Andea AA, Bohlke AK, Comfere NI, Hughes SR, Kim J, Kozel JA, Lee JB, Linos K, Litzner BR, Missall TA, Novoa RA, Sundram U, Swick BL, Hurley MY, Alam M, Argenyi Z, Duncan LM, Elston DM, Emanuel PO, Ferringer T, Fung MA, Hosler GA, Lazar AJ, Lowe L, Plaza JA, Prieto VG, Robinson JK, Schaffer A, Subtil A, Wang WL. Appropriate use criteria in dermatopathology: initial recommendations from the American Society of Dermatopathology. J Am Acad Dermatol. 2019;80(1):189-207.e11.
  4. McIlwee BE, Weis SE, Hosler GA. Incidence of endemic human cutaneous leishmaniasis in the United States. JAMA Dermatol. 2018;154(9):1032-1039.
  5. Tumminello K, Hosler GA. CDX2 and LEF-1 expression in pilomatrical tumors and their utility in the diagnosis of pilomatrical carcinoma. J Cutan Pathol. 2018;45(5):318-324.
  6. Gottesman SP, Klein WM, Hosler GA, Veprauskas KR, Rush PS, Gardner JM. #dermpathJC: the first online dermatopathology Twitter journal club. J Cutan Pathol. 2018;45(5):370-373.
  7. Zhang Z, Zi Z, Lee EE, Zhao J, Contreras DC, South AP, Abel ED, Chong BF, Vandergriff T, Hosler GA, Scherer PE, Mettlen M, Rathmell JC, DeBerardinis RJ, Wang RC. Differential glucose requirement in skin homeostasis and injury identifies a therapeutic target for psoriasis. Nat Med. 2018;24(5):617-627.
  8. Vidal CI, Armbrect EA, Andea AA, Bohlke AK, Comfere NI, Hughes SR, Kim J, Kozel JA, Lee JB, Linos K, Litzner BR, Missall TA, Novoa RA, Sundram U, Swick BL, Hurley MY, Alam M, Argenyi Z, Duncan LM, Elston DM, Emanuel PO, Ferringer T, Fung MA, Hosler GA, Lazar AJ, Lowe L, Plaza JA, Prieto VG, Robinson JK, Schaffer A, Subtil A, Wang WL. Appropriate use criteria in dermatopathology: initial recommendations from the American Society of Dermatopathology. J Cutan Pathol. 2018;45(8):563-580.
  9. Wofford J, Shedd AD, Nielsen JA, Lastufka C, Backer JW, Murphy KM, Hosler GA. A comparison study between a novel microsatellite instability assay and immunohistochemistry in the evaluation of sebaceous neoplasms for suspected Muir-Torre syndrome. (Manuscript submitted 2018).
  10. Paniagua RT, Florez-Pollack S, Kunzler E, Douglas C, Rainwater YB, Teske N, Burger E, Li QA, Hosler GA, Monson NL, Jacobe HT. Autoantigen microarrays reveal myelin basic protein autoantibodies in morphea. (Manuscript submitted 2018).
  11. Harker D, Jennings M, McDonough P, Mausker M, Savory S, Hosler GA, Vandergriff T. MYC amplification in angiosarcomas arising in the setting of chronic lymphedema of morbid obesity. J Cutan Pathol. 2017;44(1):15-19.
  12. O’Brien JC, Rainwater YB, Malviya N, Cyrus N, Auer-Hackenberg L, Hynan LS, Hosler GA, Jacobe HT. Transcriptional and cytokine profiles identify CXCL9 as a biomarker of disease activity in morphea. J Invest Dermatol. 2017;137(8):1663-1670.
  13. O’Brien JC, Hosler GA, Chong BF. Changes in T cell and B cell composition in discoid lupus erythematosus skin at different stages. J Dermatol Sci. 2017;85(3):247-249.
  14. Nguyen KD, Lee EE, Yue Y, Stork J, Pock L, North JP, Vandergriff T, Cockerell C, Hosler GA, Pastrana DV,
    Buck CB, Wang RC. Human polyomavirus 6 and 7 are associated with pruritic and dyskeratotic dermatoses. J Am Acad Dermatol. 2017;76(5):932-940.e3.
  15. Hosler GA, Davoli T, Mender I, Litzner B, Choi J, Kapur P, Shay JW, Wang RC. A primary melanoma and its asynchronous metastasis highlight the role of BRAF, CDKN2A, and TERT. J Cutan Pathol. 2015;42(2):108-117.
  16. Chong BF, Tseng L-C, Hosler GA, Teske NM, Zhang S, Karp DR, Olsen NJ, Mohan C. A subset of CD163+ macrophages displays mixed polarizations in discoid lupus skin. Arthritis Res Ther. 2015;17:324.
  17. Hosler GA, Weibel L, Wang RC. The cause of follicular spicules in multiple myeloma. JAMA Dermatol. 2015;151(4):457-458.
  18. Chong BF, Tseng LC, Kim A, Miller RT, Yancey KB, Hosler GA. Differential expression of BAFF and its receptors in discoid lupus erythematosus patients. J Dermatol Sci. 2014;73(3):216-224.
  19. Youens KE, Hosler GA, Washington PJ, Jenevein EP, Murphy KM. Clinical experience with the Cervista HPV HR assay: correlation of cytology and HPV status from 56,501 specimens. J Mol Diagnostics. 2011;13(2):160-166.
  20. Bishop JA, Hosler GA, Kulesza P, Erozan YS, Ali SZ. Fine-needle aspiration of renal cell carcinoma: Is accurate Fuhrman grading possible on cytologic material? Diagn Cytopathol. 2011;39(3):168-171.
  21. Wang R, Matthews MR, Matthews L, Law RM, Susa JS, Hosler GA, Browning J, Cockerell CJ, Yancey KB. Merkel cell polyomavirus is present in Merkel cell cancer (MCC) but absent in gastrointestinal neuroendocrine carcinomas and trichodysplasia spinulosa. J Invest Dermatol. 2010 Mar. (Conference paper).
  22. Mamelak AJ, Goldberg LH, Marquez D, Hosler GA, Hinckley MR, Friedman PM. Eruptive keratoacanthomas on the legs after fractional photothermolysis: report of two cases. Dermatologic Surg. 2009;35(3):513-518.
  23. Hosler GA, Clark I, Zakowski MF, Westra WH, Ali SZ. Cytopathologic analysis of thyroid lesions in the pediatric population. Diagn Cytopathol. 2006;34(2):101-105.
  24. Hosler GA, Epstein JI. Basal cell hyperplasia: an unusual diagnostic dilemma on prostate needle biopsies. Hum Pathol. 2005;36(5):480-485.
  25. Rosenbaum E, Hosler GA, Zahurak M, Cohen Y, Sidransky D, Westra WH. Mutational activation of BRAF is not a major event in sporadic childhood papillary thyroid carcinoma. Mod Pathol. 2005;18(7):898-902.
  26. Hosler GA, Steinberg DM, Sheth S, Hamper UM, Erozan YS, Ali SZ. Inflammatory pseudotumor: a diagnostic dilemma in cytopathology. Diagn Cytopathol. 2004;31(4):267-270.
  27. Hosler GA, Cusumano A, Hutchins G. Thrombotic thrombocytopenic purpura and hemolytic uremic syndrome are distinct pathologic entities. A review of 56 cases. Arch Pathol Lab Med. 2003;127(7):834-839.
  28. Hosler GA, Bash R, Scheuermann RH. Kinetics of early therapeutic response as measured by quantitative PCR predicts survival in a murine xenograft model of human T cell acute lymphoblastic leukemia. Leukemia. 2000;14(7):1215-1224.
  29. Hosler GA, Bash RO, Bai X, Jain V, Scheuermann RH. Development and validation of a quantitative polymerase chain reaction assay to evaluate minimal residual disease for T-cell acute lymphoblastic leukemia and follicular lymphoma. Am J Pathol. 1999;154(4):1023-1035.
  30. Bai X, Hosler GA, Rogers B, Dawson D, Scheuermann R. Quantitative polymerse chain reaction for human herpes virus diagnosis and measurement of Epstein-Barr virus burden in post-transplant lymphoproliferative disorder. Clin Chem. 1997;43(4):1843-1849.


  1. Hosler GA, Moresi JM, Barrett TL. Nevi with site-related atypia: a review of melanocytic nevi with atypical histologic features based on anatomic site. J Cutan Pathol. 2008 Oct;35(10):889-98.
  2. Pathology Outlines – multiple contributions at

Case Reports

  1. Enos T, Hosler GA, Uddin N, Mir A. Congenital infantile fibrosarcoma mimicking a cutaneous vascular lesion: a case report and review of the literature. J Cutan Pathol. 2017;44(2):193-200.
  2. Carletti M, Hosler GA, Weis S. Undifferentiated pleomorphic sarcoma of skin: a clinical and histopathologic emulator of atypical fibroxanthoma with a different prognosis. (Submitted in 2017).
  3. Hill AM, Peters J, Rojas A, Hosler GA, Murphy KM. A novel calreticulin mutation in a patient with myeloproliferative neoplasm. Ann Hematol. 2016;95(11):1905-1907.
  4. Choi JM, A Drosou, GA Hosler. Xanthoma disseminatum with CNS findings. (Manuscript submitted 2017).
  5. Campa M, Patel M, Aubert P, Hosler GA, Witheiler D. Blue nevus–like metastasis of a cutaneous melanoma identified by fluorescence in situ hybridization. Am J Dermatopathol. 2016;38(9):695-697.
  6. Sundarkrishnan L, Bradish JR, Oliai BR, Hosler GA. Cutaneous cellular pseudoglandular schwannoma: an unusual histopathologic variant. Am J Dermatopathol. 2016;38(4):315-318.
  7. Loh E, Hosler GA. Vemurafenib-associated keratoses with genetic heterogeneity of RAS. J Drugs Dermatology. 2014;13(4):495-497.
  8. Hosler GA, Liégeois N, Anhalt GJ, Moresi JM. Transformation of cutaneous gamma/delta T-cell lymphoma following 15 years of indolent behavior. J Cutan Pathol. 2008;35(11):1063-1067.
  9. Janjua SA, Iftikhar N, Pastar Z, Hosler GA. Keratosis follicularis spinulosa decalvans associated with acne keloidalis nuchae and tufted hair folliculitis. Am J Clin Dermatol. 2008;9(2):137-140.

Book Chapters

  1. Hosler GA and Patterson JW. Lentigines, nevi, and melanomas. In: Patterson JW, ed. Weedon’s Skin Pathology. 5th ed. Philadelphia, PA: Churchill Livingstone Elsevier; (2019 release).
  2. Hosler GA and Patterson JW. Lentigines, nevi, and melanomas. In: Patterson JW, ed. Weedon’s Skin Pathology. 4th ed. Philadelphia, PA: Churchill Livingstone Elsevier; 2015:837-901.

  1. Reagan K, Cabradilla C, Shuman D, Stollar N, Laudeman J, Bai X, Hosler GA, Scheuermann RH. Analytical performance of a quantitative CMV DNA detection method. In: Scholz M, Rabenau H, Doerr H, Cinatl JJ Jr, eds. CMV-Related Immunopathology. Basel: Karger; 1998:252-261. Monographs in Virology; vol 21.
  2. Hosler GA. Neural and fat neoplasms. In: Singh R, Elston D, Bhavan J, Prieto VG, eds. Dermatopathology for Residents. PathPresenter; 2019. (In progress)


  1. Hosler GA, ed. Diagnostic Dermatopathology: A Guide to Ancillary Tests Beyond the H&E. London, England: JP Medical Publishers; 2016.
  2. Hosler GA and Murphy KM, eds. Molecular Diagnostics in Dermatology: Practical Applications of Molecular Testing for the Diagnosis and Management of the Dermatology Patient. Berlin, Germany: Springer; 2014.



  1. Dickson L, Frieder J, Hosler GA, Mete M, Sirakov N, Menter A. A novel automated dermoscopy-based image analyzer for the clinical evaluation of pigmented lesions and early detection of melanoma [abstract and platform presentation, 2nd prize]. Texas Dermatologic Society, 2017.
  2. Mazurka A, Hosler GA. Metaplastic cutaneous meningioma in an adult man [abstract and poster]. American Society of Dermatopathology, 2016.
  3. Byekova Rainwater Y, Jacobe H, Hosler GA. Characterization of cell-type specific expressions of CXCR3 ligands in morphea [abstract and platform presentation, 1st prize]. Texas Dermatologic Society, 2016.
  4. Wibisono A, Hosler GA, Murphy KM, Roberts CA, Youens KE. Clinical experience using genetic identity testing in an anatomic pathology lab [abstract]. College of American Pathologists, 2015. Arch Pathol Lab Med. 2015;139(10):e123.
  5. Hodges L, Weis S, Hosler GA. An unusual variant of juvenile-onset atypical pityriasis rubra pilaris versus psoriasis [abstract]. Louisiana Dermatological Society, 2014.
  6. Aubert P, Hosler GA. Pigmented fungiform papillae of the tongue [abstract]. American Society of Dermatopathology, Chicago, IL, 2014.
  7. Litzner B, Hosler GA. BRAF testing in melanoma [abstract]. Texas Dermatological Society, 2013.
  8. Sugianto J, Lewin M, Hosler GA. Two cases of cutaneous cystic teratoma [abstract and poster]. American Society of Dermatopathology, Seattle, WA, 2011.
  9. Graves J, Hosler GA. Cutaneous carcinoid: case report and review of the literature [abstract and poster]. American Society of Dermatopathology, Chicago, IL, 2009.
  10. Lucas E, Bushore D, Barrett TL, Hosler GA. Lipoid proteinosis, a rare case of late-onset disease [abstract and poster]. American Society of Dermatopathology, San Francisco, CA, 2008.
  11. Wang RC, Matthew L, Law R, Susa J, Hosler GA, Cockerell CJ, Yancey KB. Prevalence of Merkel cell polyomavirus in Merkel cell cancer and gastrointestinal neuroendocrine carcinomas [abstract and poster]. Texas Dermatologic Society, 2008.

Our Dermatopathologists

Gregory A. Hosler, M.D., Ph.D., FCAP

Director, Dermatopathology

Said Albahra, M.D.

Dermatopathology Fellow

Lola Sode, M.D.

Dermatopathology Fellow

Meet Our Experts

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