Details

Autor(en) / Beteiligte

• Needle, D.B.
• Hollinger, C.
• Shelton, G.D.
• Fitzgerald, S.D.

Titel

Necrotizing and Eosinophilic Masticatory Myositis in Farmed Mink: a Preliminary Description

Ist Teil von

• Journal of comparative pathology, 2014-08, Vol.151 (2-3), p.217-227

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2014

Quelle

MEDLINE

Beschreibungen/Notizen

• This report describes necrotizing and eosinophilic myositis affecting the masticatory muscles of a group of mink. Affected animals demonstrated sudden death with marked subcutaneous oedema over the dorsal head. The temporalis and masseter muscles were pale, swollen and friable. Histologic changes consisted of varying degrees of myodegeneration, myonecrosis and inflammation. Eosinophils were prominent in the inflammatory infiltrate. Similar to dogs, masticatory muscles in mink were found to contain unique type 2M fibres, suggesting a possible target for an immune response. Aerobic and anaerobic tissue cultures of the affected musculature revealed no significant pathogens. Histological and nutritional analyses were not typical of vitamin E/selenium deficiency. This case series supports the existence of a novel disease entity in mink with some features comparable with masticatory muscle myositis in dogs.