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Animal Dermatology Clinic

Tustin, California

• Wayne Rosenkrantz, DVM, Diplomate ACVD, Board Certified Veterinary Dermatologist
Dr. Rosenkrantz is a 1982 UC Davis graduate, who completed a private practice internship in 1983 and joined Dr. Craig Griffin for a residency-training program in 1983. His program was combined with interaction at the Medical School at UC Irvine and he achieved Diplomate status in the American College of Veterinary Dermatology (ACVD) in 1986.

Dr. Rosenkrantz has served on the ACVD and Australian Board of Examiners. He is a past chairman of the ACVD Research Funding Committee and has served on multiple past and present World Congress of Veterinary Dermatology Organization Committees. He is also currently a board member of the World Association for Veterinary Dermatology (WAVD), which functions as a governing body for the WCVD and promotes the advancement of veterinary dermatology internationally. He is a past president of the executive board of the ACVD and has served on the ACVD board for 12 years.

Dr Rosenkrantz was awarded the DVM Pharmaceutical Award of Excellence for his contributions to veterinary dermatology. He actively lectures throughout the United States and abroad and has also been an instructor for the European School of Advanced Veterinary Studies since 2005. He is also a clinical instructor for the Western Veterinary Medicine College in Pomona California for his involvement in clinical rotations of veterinary students at the Tustin location.

He has published many articles and book chapters on small animal and equine dermatology, including significant contributions to the Current Veterinary Dermatology, the Science and Art of Therapy and well as the therapy section in the 7th edition of Muller and Kirk’s Small Animal Dermatology. He is also a co-editor of a new textbook, Veterinary Allergy and Immunology.

His special interest include: veterinary dermatology therapeutics, feline and equine dermatology, dermatohistopathology, canine alopecia, immune mediated skin diseases and chronic allergic skin and ear disease management.

• Rusty Muse, DVM, Diplomate ACVD MANZCVS, Board Certified Veterinary Dermatologist
Dr. Rusty Muse received his Doctorate of Veterinary Medicine from Louisiana State University. He completed his residency at Animal Dermatology Clinic- Tustin and the University of California Irvine Department of Dermatology in 1995, and became a Diplomate of the American College of Veterinary Dermatology in 1996. He is also a registered specialist in dermatology in Western Australia.

Dr. Muse is an owner of the Animal Dermatology Group and receives cases in Tustin, Long Beach CA and Perth, Western Australia.

Dr. Muse is a member of the American College of Veterinary Dermatology (ACVD), the American Academy of Veterinary Dermatology, the dermatology chapter of the Australia and New Zealand College of Veterinary Scientists, the Southern California Veterinary Medical Association, and Kentucky Veterinary Medical Association.

He has been active as a Diplomate in the ACVD and served as President of the Executive Board for the College from 2012-14. He has also been the past Secretary of the College, past Chair of the Research Funding Committee as well as a member and Chair of the Credentials Committee. Dr. Muse was the Publicity Committee Chair for the 7th World Congress of Veterinary Dermatology (WCVD7) held in Vancouver, Canada in 2012. He also sits on the Administrative Committee of the World Association for Veterinary Dermatology in his current role as Secretary of the 9th WCVD meeting to be held in Sydney, Australia in 2020.

Dr. Muse is a native of Maysville, KY and graduated from the University of Louisiana in Lafayette before being accepted to veterinary school. His outside interests include tennis and travel. Current pets include 3 great cats named Karl, Dieter and Hans.

• Colleen Mendelsohn, DVM, Diplomate ACVD, Board Certified Veterinary Dermatologist
Dr. Colleen Mendelsohn is a 1997 graduate of UC Davis School of Veterinary Medicine and received Diplomate status with the American College of Veterinary Dermatology in 2004.
After graduation from UC Davis, Dr. Mendelsohn completed an internship with the Animal Emergency Clinic and Animal Specialty Group in San Diego. She later practiced general medicine before starting her residency with the Animal Dermatology Clinic in 2000. Her love and appreciation of the human-animal bond is what drew Dr. Mendelsohn to this specialty. In her words, "The conditions we treat often require good long term relationships with patients and owners, which affords me the opportunity to be part of that special relationship that develops between humans and pets."

Another opportunity that Dr. Mendelsohn enjoys is the training of veterinary students, helping these students appreciate the hidden complexities of dermatologic disease.

• Kimberly Lo, DVM, Diplomate ACVD, Board Certified Veterinary Dermatologist
Dr. Kimberly Lo graduated from the UC Davis School of Veterinary Medicine in 2012 with an award for her proficiency in dermatology. Prior to accepting a residency position at Animal Dermatology Clinic, she completed a one year rotating internship at VCA San Francisco Veterinary Specialists. Dr. Lo obtained Diplomate status with the American College of Veterinary Dermatology (ACVD) in 2016. She has a strong interest in both allergies and autoimmune skin diseases. She primarily sees cases in our Tustin and Mission Viejo, CA locations, in addition to occasional cases in our Indianapolis clinic. She is passionate about all things skin and brachycephalic (smush-faced) dogs, which often go hand in hand.

• ___________________ DVM, Residents
• Henrietta Parnell-Turner, BVMBVS, Resident
Dr. Parnell graduated from Nottingham University in the United Kingdom in 2013, and worked for 3 years in small animal general practice prior to relocating to the USA. She completed a one-year Emergency and Critical Care internship at Cape Cod Veterinary Specialists in Massachusetts, followed by the move to California.

Dr. Parnell enjoys allergic skin disease and has a soft spot for her geriatric patients. She has a particular interest in animal welfare and comparative medicine.

Outside the clinic, Dr. Parnell enjoys ballet, occasional running and spending time with her family and friends.

• Katlyn Lake, DVM, Resident
Dr. Lake grew up in a military family, living in California, Germany, Virginia, and ultimately settling in Pennsylvania. She received her Bachelor of Science in Biology with a minor in Chemistry from Virginia Tech. She then attended the University of Missouri College of Veterinary Medicine and graduated in 2017. Following graduation, Dr. Lake completed a small animal medicine and surgery rotating internship in Monterey, CA and a dermatology specialty internship outside of Philadelphia, PA. Following her year in Pennsylvania, Dr. Lake accepted a dermatology residency with Animal Dermatology Clinic.

In Dr. Lake’s spare time, she enjoys spending time with family, hiking, camping, traveling, playing volleyball, and trying unique food. She also has a young pug, Thea, who is the newest addition to her family. 
• M. Kelly Keating, DVM, DACVP, Resident
Dr. Keating graduated from University of Minnesota-Twin Cities in 2011 and completed a 3-year anatomic pathology residency at the University of California-Davis culminating in board certification with the American College of Veterinary Pathologists in 2014. She then completed an Infectious Disease Fellowship with the Centers of Disease Control & Prevention (CDC) and stayed on as a Staff Pathologist. After this she worked in drug safety assessment with Charles River Laboratories. She has co-authored multiple peer-reviewed articles, and book chapters primarily in the field of infectious disease pathology.

Missing the clinical world and always having an interest in dermatology she started a dermatology residency with Animal Dermatology Clinic in 2019 with the goal of merging her interests of dermatology and dermatopathology.

Outside of the clinic, Dr. Keating enjoys spending time with friends and family, including her 6-year-old orange tabby cat. She also enjoys outdoor and culinary adventures, such as rock climbing, hiking, spending time at the beach, baking sourdough bread and vegetable fermentation.

Animal Dermatology Clinic
2965 Edinger Ave
Tustin, California 92780
Phone: (949) 936-0066
Fax: (949) 936-0071
Email: infotustin@adcmg.com

Success Stories


Before: Oscar was adopted in this condition. Over-grooming due to itchiness caused hair loss on his flank and legs.

After: After treatment, Oscar's hair grown back. Allergic symptoms have abated.

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Pet of the Month


Dottie - is a rescue that now lives in Santa Monica, CA. She is also a patient at the Marina del Rey clinic.

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As specialists, we stay current on new research and treatments and are actively involved with the research. Our dermatology practice is not limited to small animals and we often have equine and occasionally exotic patients. Learn More >