Related Experiment Video
Updated: Aug 26, 2026

Infecting Mice with Malassezia spp. to Study the Fungus-Host Interaction
Published on: November 6, 2019
Seborrhoeic dermatitis in a goat due to Malassezia pachydermatis
1Unité de Dermatologie, Service d'Anatomie Pathologique, Ecole Nationale Vétérinaire de Lyon BP 83, marcy L'Etoile, France. dpin_vetderm@hotmail.com
Abstract:
A 6-year-old female goat was presented with a seborrhoeic dermatosis of 5 months duration. The condition developed following a severe enteritis associated with weight loss. Dermatological examination showed a generalized greasy seborrhoeic dermatosis, which spared the head and extremities of the limbs. Microscopic examination of impression smears of lesional skin revealed numerous yeasts typical of Malassezia sp. Culture on Sabouraud's dextrose agar yielded Malassezia pachydermatis growth. Histopathological examination of haematoxylin/eosin and safranin (HES) stained sections of biopsies showed mild lymphocytic superficial perivascular hyperplastic dermatitis. Numerous budding yeasts were visible both on the surface, and follicular keratin, in HES and periodic acid Schiff (PAS) stained sections. A dramatic response was observed after 1 week of a topical anti-Malassezia treatment, and the resolution of the condition was complete after 4 weeks.
Related Concept Videos
The Skin Microbiota
Skin Diseases and Disorders
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Staphylococcal Skin Infections
Giardiasis
Toxoplasmosis
Cryptococcal Meningitis
