Christine J Ko, MD

Professor of Dermatology

Departments & Organizations

Dermatology: Dermatopathology | Yale Dermatology Associates

Pathology: Dermatopathology | Experimental Pathology Graduate Program

Cancer Center: Melanoma Program

Faculty Research

Yale Medicine

Office of Cooperative Research


Dr. Christine Ko is Professor of Dermatology and Pathology. She is board certified in dermatology with a specialty certificate in dermatopathology. Most of her time is spent in the Division of Dermatopathology, where she renders diagnoses for skin biopsies, sent in to Yale from Yale Dermatology Associates and other dermatology practices in Connecticut. Dr. Ko is particularly interested in squamous cell carcinoma and keratocanthoma. She studies such tumors, in collaboration with researchers in the Department of Genetics and the Division of Dermatologic Surgery. For all skin cancer patients, she conducts rigorous screening skin examinations on a regular basis to detect skin cancers and to optimize prevention and therapy.

Dr. Ko cares for patients with complex dermatologic disease such as psoriasis, autoimmune blistering diseases (pemphigus foliaceus, bullous pemphigoid), and connective tissue diseases (lupus erythematosus, morphea, lichen sclerosus). Dr. Ko also participates in the multidisciplinary vascular conference at Yale University, working with physicians from interventional radiology, pediatrics, and surgery.

Dr. Ko received her AB at Princeton University and MD from New York University School of Medicine. She completed internship at UCLA, and her dermatology residency at University of California, Irvine.

Education & Training

MD New York University School of Medicine (1999)
BA Princeton University (1995)
Postdoctoral Fellow University of California, Los Angeles, CA
Resident University of California, Irvine, CA
Intern University of California, Los Angeles, CA
Board Certification AB of Dermatology, Dermatology (2003)
Board Certification AB of Dermatology, Dermatopathology (2004)

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Contact Info

Christine J Ko, MD
Patient Care Locations
Yale DermatopathologyLippard Lab for Clinical Investigation
15 York Street, Ste LMP 5031

New Haven, CT 06510
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Yale Dermatology AssociatesDoctors Building
2 Church Street South, Ste 3rd Floor

New Haven, CT 06519
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Mailing Address
PO Box 208059
333 Cedar Street

New Haven, CT 06520-8059

Curriculum Vitae

Research Image 1

Squamous cell carcinoma. The lesion has a crateriform architecture. Cutaneous squamous cell carcinoma does not tend to self-resolve and rarely may metastasize.

Research Image 2

Keratoacanthoma. This lesion has a characteristic crateriform architecture. While standard treatment is to treat keratoacanthoma as a subtype of squamous cell carcinoma, true keratoacanthoma is a self-resolving tumor.