This is unpublished


Clinical Assistant Professor, Department of Dermatology
Sites of Practice
Eastside Specialty Center
VA Puget Sound Health Care System
Dermatopathology Northwest


Eastside Specialty Center

Schedule Online

3100 Northup Way
Bellevue, WA 98004

VA Puget Sound Health Care System

Schedule Online

Seattle VA Medical Center 
1660 South Columbian Way
Seattle, WA 98108-1532


Dr. Caitlin May is board-certified in dermatology and dermatopathology. She works as a dermatologist at the UW Medicine Eastside Speciality Center, the Teledermatology Program at the Puget Sound VA Health Care System, a dermatopathologist at Dermatopathology Northwest and Clinical Assistant Professor in the Department of Dermatology at the University of Washington. She received her MD from the University of Washington School of Medicine, where she also completed a dermatology residency and served as co-chief resident from 2016-2017. She completed a fellowship in dermatopathology at the University of Washington as well. She is an active member of numerous professional organizations including the Seattle Dermatologic Society (SDS). 

Dr. May also served as a consultant dermatopathologist at Dorevitch Pathology in Melbourne, Australia from 2018-2019. She is actively involved in research regarding the histologic diagnosis of the spectrum of melanocytic lesions and has presented numerous times at national meetings. She now lives with her husband and two young children in Kirkland, and enjoys spending time with her family, hiking and backpacking, traveling and good food.

Education & Training

Dermatopathology Consultant, Dorevitch Pathology, Melbourne, Australia (2018-20190

Fellowship in Dermatopathology, University of Washington, Seattle, WA (2017-2018)

Residency in Dermatology, University of Washington, Seattle, WA (2014-2017)

Internal Medicine Internship, Virginia Mason Medical Center, Seattle, WA  (2013-2014)

MD, University of Washington, Seattle, WA (2009-2013)

Bachelor of Science in Biochemistry, Washington State University, Pullman, WA (2003-2007)


Chief Resident, UW School of Medicine, Department of Dermatology (2016-2017)

Research Interests

Dr. May's research interests include the accurate diagnosis of melanocytic lesions and the use of machine learning in histopathology.

Clinical Interests

Dr. May's clinical interests include complex medical dermatology, alopecia, melanocytic neoplasms and teledermatology.



Selected Publications

Hadi R, Miller TI, May C, Lehman JS, Bennett DD, Piliang M, Chang O, Shinohara S. Impact of clinical photographs on the accuracy and confidence in the histopathological diagnosis of mycosis fungoidesJ Cutan Pathol. Published online December 16, 2020. PMID: 33326119.

May, CJ, Piepkorn MW, Knezevich SR, Elder DE, Barnhill RL, Lee AC, Flores MJ, Kerr KF, Reisch LM, Elmore, JG. Factors associated with use of immunohistochemical markers in the histopathological diagnosis of cutaneous melanocytic lesions. J Cutan Pathol, 2020 May 7. doi: 10.1111/cup.13736. PMID: 32383301.

Nofalla S, Mehta S, Mercan E, Knezevich S, May CJ, Weaver D, Witten D, Elmore JG, Shapiro L. Machine Learning Techniques for Mitoses Classification. Computerized Medical Imaging and Graphics, Vol 87, 2021.

Liu K, Mokhtari M, Li B, Nofallah S, May C, Chang O, Knezevich S, Elmore J, Shapiro L. Learning Melanocytic Proliferation Segmentation in Histopathology Images from Imperfect Annotations. IEEE Workshop on Computer Vision for Microscopy, 2021.

May C, LeBoit P, McCalmont T, Argenyi Z. Hypercellular Encapsulated Neuroma Imitating Desmoplastic Melanoma. Am J Dermatopathol. Accepted for publishing, September 2018.

May C, Fleckman P, Brandling-Bennett H, Cole B, Sidbury R. Lichenoid drug eruption with prominent nail changes due to leflunomide in a 12 year-old child. Pediatr Dermatol. 2017; 34(4): e225-e226.

May C, Shinohara M. Progressive, Painful Erosions of the Face, Neck, and LipsAm J Dermatopathol. 2017; 0:1.

May C, Chang O, Compton N. A giant apocrine hidrocystoma of the trunk. Dermatol Online J. 2017;23(9).