The use of photobiomodulation therapy in the treatment of hair cycle arrest in a Pembroke Welsh corgi

Abstract

AbstractHair cycle arrest is a relatively common condition of double‐coated breeds with a complex and poorly defined pathogenesis. Several therapeutic options have been described; however, the clinical response is often variable, and some treatment options can be invasive and may invoke adverse effects. Herein is described the first case of hair cycle arrest in a Pembroke Welsh corgi, which was successfully treated with photobiomodulation therapy. Photobiomodulation therapy (previously known as low‐level laser therapy) proved to be a well‐tolerated treatment, with no adverse effects appreciated. Videodermoscopy, a non‐invasive technique, was utilised to objectively measure response to treatment and was a readily repeatable tool for in‐hospital use. This case highlights a previously unrecognised breed to consider for the diagnosis of hair cycle arrest, as well a new indication for photobiomodulation therapy as a treatment option and videodermoscopy diagnostic analysis software as an aid in case management for practitioners moving forward.