Byrne Barbara A, Rand Courtney L, McElliott Valerie R, Samitz Eileen M, Brault Stephanie A
Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA.
J Vet Diagn Invest. 2010 Jan;22(1):141-3. doi: 10.1177/104063871002200131.
Dermatophilosis caused by Dermatophilus congolensis causes exudative dermatitis in a variety of species. The infection is generally limited to the cutaneous tissues, where infection is acquired from the environment and bacteria penetrate into keratinized epithelium through epithelial disruption. A 3-year-old pony filly was examined for enlarging mandibular lymph nodes during the preceding 10 months. Biopsy of the node revealed mixed and granulomatous inflammation and thick, filamentous Gram-positive bacteria. Dermatophilus congolensis, confirmed by biochemical testing and sequencing of the ribosomal RNA gene, was cultured from a sample aspirated from the infected site. Dermatophilus congolensis should be considered as a possible etiologic agent associated with lymphadenopathy and granulomatous inflammation in the horse.
由刚果嗜皮菌引起的嗜皮菌病可在多种物种中引发渗出性皮炎。该感染通常局限于皮肤组织，感染源来自环境，细菌通过上皮组织破损处侵入角质化上皮。一匹3岁的小母马在过去10个月里因下颌淋巴结肿大接受检查。对该淋巴结进行活检发现有混合性和肉芽肿性炎症以及粗大的丝状革兰氏阳性菌。通过生化检测和核糖体RNA基因测序确诊为刚果嗜皮菌，该菌是从感染部位抽取的样本中培养出来的。刚果嗜皮菌应被视为与马的淋巴结病和肉芽肿性炎症相关的一种可能病原体。
