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. Coias J, Marzuka A, Hosler GA, Chong BF. T cell polarization differs in various stages of discoid lupus erythematosus skin. Br J Dermatol. 2020 May;182(5):1291-1293.
    2. Chamseddin BH, Lee EE, Kim J, Zhan X, Yang R, Murphy KM, Lewis C, Hosler GA, Hammer ST, Wang RC. Assessment of circularized E7 RNA, GLUT1, and PD-L1 in anal squamous cell carcinoma. 2019 Oct 15;10(57):5958-5969.
    3. Nanes BA, Laknezhad S, Chamseddin B, Doorbar J, Mir A, Hosler GA, Wang RC. Verrucous pilar cysts infected with beta human papillomavirus. J Cutan Pathol. 2020 Apr;47(4):381-386.
    4. 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. 2019 Jul;46(7):484-489.
    5. 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 Feb;139(2):478-481.
    6. McIlwee BE, Weis SE, Hosler GA. Incidence of endemic human cutaneous leishmaniasis in the United States. JAMA Dermatol. 2018 Sep 1;154(9):1032-1039
    7. 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 Jan;80(1):189-207.e11.
    8. 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 May;24(5):617-627.
    9. 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 Aug;45(8):563-580.
    10. Gottesman SP, Klein WM, Hosler GA, Veprauskas KR, Rush PS, Gardner JM. #dermpathJC: the first online dermatopathology Twitter journal club. J Cutan Pathol. 2018 May;45(5):370-373.
    11. 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 May;45(5):318-324.
    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 Aug;137(8):1663-1670.
    13. 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 May;76(5):932-940.e3.
    14. 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 Mar;85(3):247-249.
    1. 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 Jan;44(1):15-19.
    2. Chong BF, Tseng LC, 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 Nov 13;17:324.
    3. Hosler GA, Weibel L, Wang RC. The cause of follicular spicules in multiple myeloma. JAMA Dermatol. 2015 Apr;151(4):457-458.
    4. 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 Mar;73(3):216-224.
    5. 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 Mar;13(2):160-166.
    6. 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 Mar;39(3):168-171.
    7. 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).
    8. 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 Mar;35(3):513-518.
    9. Hosler GA, Clark I, Zakowski MF, Westra WH, Ali SZ. Cytopathologic analysis of thyroid lesions in the pediatric population. Diagn Cytopathol. 2006 Feb;34(2):101-105.
    10. 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 Jul;18(7):898-902.
    11. Hosler GA, Epstein JI. Basal cell hyperplasia: an unusual diagnostic dilemma on prostate needle biopsies. Hum Pathol. 2005 May;36(5):480-485.
    12. Hosler GA, Steinberg DM, Sheth S, Hamper UM, Erozan YS, Ali SZ. Inflammatory pseudotumor: a diagnostic dilemma in cytopathology. Diagn Cytopathol. 2004 Oct;31(4):267-270.
    13. 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 Jul;127(7):834-839.
    14. 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 Jul;14(7):1215-1224.
    15. 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 Apr;154(4):1023-1035.
    16. 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 Oct;43(4):1843-1849.

Case Reports

    1. Sode T, Uzoma B, Vandergriff T, Hosler GA. Urticaria and a rare mutation: an unusual case of neutrophilic urticarial dermatosis. J Amer Acad Dermatol. 2020 [accepted for publication].
    2. Sode T, Kunzler E, Uzoma B, McCollough M, Hosler GA. A meissnerian neurofibroma: case report of a rare neurofibroma variant. J Cutan Pathol. 2020 May [Epub ahead of print].
    3. 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 Feb;44(2):193-200.
    4. Hill AM, Peters J, Rojas A, Hosler GA, Murphy KM. A novel calreticulin mutation in a patient with myeloproliferative neoplasm. Ann Hematol. 2016 Oct;95(11):1905-1907.
    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 Sep;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 Apr;38(4):315-318.
    7. 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 Feb;42(2):108-117.
    8. Loh E, Hosler GA. Vemurafenib-associated keratoses with genetic heterogeneity of RAS. J Drugs Dermatology. 2014 Apr;13(4):495-497.
    9. 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 Nov;35(11):1063-1067.
    10. 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. Decrescenzo A, Lewin MR, Hosler GA. Neural and fat neoplasms. In: Singh R, Elston D, Bhawan J, Prieto VG, eds. Dermatopathology for Residents. PathPresenter; 2019.


  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. 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

Manuscripts in Progress

  1. 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 [submitted to J Invest Dermatol].
  2. Richmond JM, Patel D, Garelli CJ, Watanabe T, Martyanov V, Garg M, Hseuh Y-C, Leclerc M, Refat MA, Mahmoud BH, Wong LD, Dresser K, Deng A, Zhu J, McAlpine W, Hosler GA, Feghali-Bostwick CA, Whitfield ML, Harris JE, Jacobe H. CXCL9 links skin inflammation and fibrosis via CXCR3-dependent upregulation of collagen 1a1 in fibroblasts [submitted to J Invest Dermatol].
  3. Charles JE, Weis SE, Hosler GA. Acyclovir-resistant anogenital herpes simplex in an HIV-positive patient with pseudoepitheliomatous hyperplasia resembling squamous cell carcinoma.
  4. Wofford J, Shedd AD, Nielsen JA, Lastufka CL, 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.
  5. Carletti M, Hosler GA, Weis S. Undifferentiated pleomorphic sarcoma of the skin: a clinical and histopathologic emulator of atypical fibroxanthoma with a different prognosis.
  6. Choi JM, Drosou A, Hosler GA. Xanthoma disseminatum with CNS findings.

Abstracts and Posters

    1. Estrada S, Scumpia PO, O’Neill B, Hosler GA, Cleaver N. Development of a diagnostic gene expression profile test for ambiguous or difficult to diagnose pigmented skin lesions [abstract submitted to ASDP 2020].
    2. DeCrescenzo A, Liu M, Witheiler D, Hosler GA. Reactive angioendotheliomatosis associated with arteriovenous fistulas [abstract submitted to ASDP 2020].
    3. Cunningham C, Lewin M, Hosler GA. Mucinous metaplasia in adnexal tumors: case series [abstract submitted to ASDP 2020].
    4. Kunzler E, Lewin MR, Hosler GA. A case of pleomorphic hyalinizing angiectatic tumor of the upper extremity [abstract and poster]. American Society of Dermatopathology, 2019.
    5. Albahra S, Hosler GA, Lewin MR. A review of rare variants of peripheral nerve sheath tumors [abstract and poster]. American Society of Dermatopathology, 2019.
    6. DeWall M, McIlwee BE, Hosler GA, Lewin MR. Folliculosebaceous cystic hamartoma with spindle cell mesenchymal component: potential categorization of these lesions as superficial spindle cell lipomas [abstract and poster]. American Society of Dermatopathology, 2018.
    7. 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.
    8. Mazurka A, Hosler GA. Metaplastic cutaneous meningioma in an adult man [abstract and poster]. American Society of Dermatopathology, 2016.
    9. Rainwater YB, 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.
    10. Wibisono A, Hosler GA, Murphy KM, Roberts CA, Youens KE. Clinical experience using genetic identity testing in an anatomic pathology lab [abstract and poster]. College of American Pathologists, 2015. Arch Pathol Lab Med. 2015;139(10):e123.
    11. Hodges L, Weis S, Hosler GA. An unusual variant of juvenile-onset atypical pityriasis rubra pilaris versus psoriasis [abstract and poster]. Louisiana Dermatological Society, 2014.
    1. Aubert P, Hosler GA. Pigmented fungiform papillae of the tongue [abstract and poster]. American Society of Dermatopathology, Chicago, IL, 2014.
    2. Litzner B, Hosler GA. BRAF testing in melanoma [abstract and platform presentation, 1st prize]. Texas Dermatological Society, 2013.
    3. Sugianto J, Lewin M, Hosler GA. Two cases of cutaneous cystic teratoma [abstract and poster]. American Society of Dermatopathology, Seattle, WA, 2011.
    4. Shah NK, Hick RW, Patel MJ, Hosler GA. Sebaceous hyperplasia following cyclosporine treatment [abstract and poster]. American Society of Dermatopathology, 2010.
    5. Graves J, Hosler GA. Cutaneous carcinoid: case report and review of the literature [abstract and poster]. American Society of Dermatopathology, Chicago, IL, 2009.
    6. 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.
    7. 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

ProPath is an internationally recognized practice of academic-quality expertise with private practices.