@otoderm.vet: 💡A fluorescent wood lamp, is a specialized ultraviolet (UV) lamp used in dermatology and mycology. It emits UV light, revealing certain substances not visible under normal light, aiding in the diagnosis of fungal infections like ringworm. It is important to know, that a negative wood lamp examination doesn’t rule out dermatophytosis. The wood lamp specifically targets M. canis, and only around 50% of them produce the fluorescent compound pteridine. 🧫 Since various species can impact your pet, relying on a mycological culture remains the only reliable complementary test to conclusively exclude dermatophytosis.