title: Cutaneous lesions associated with coronavirus-induced vasculitis in a cat with feline infectious peritonitis and concurrent feline immunodeficiency virus infection.
abstract: This report describes a clinical case of feline infectious peritonitis (FIP) with multisystemic involvement, including multiple nodular cutaneous lesions, in a cat that was co-infected with feline coronavirus and feline immunodeficiency virus. The skin lesions were caused by a pyogranulomatous-necrotising dermal phlebitis and periphlebitis. Immunohistology demonstrated the presence of coronavirus antigen in macrophages within these lesions. The pathogenesis of FIP involves a viral associated, disseminated phlebitis and periphlebitis which can arise at many sites. Target organs frequently include the eyes, abdominal organs, pleural and peritoneal membranes, and central nervous tissues, but cutaneous lesions have not previously been reported.
authors.affiliation: Oxfordshire Cat Clinic, Larkmead Veterinary Group, Ilges Lane, Cholsey, Oxon OX10 7JP, UK. marthacannon@cat-clinic.co.uk
authors.forename: Martha J
authors.initials: MJ
authors.lastname: Cannon
authors.forename: Malcolm A
authors.initials: MA
authors.lastname: Silkstone
authors.forename: Anja M
authors.initials: AM
authors.lastname: Kipar
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D000917:Antibody Formation; D000956:Antigens, Viral / Q000032:analysis; D002371:Cat Diseases / Q000175:diagnosis / Q000821:virology; D002415:Cats; D018352:Coronavirus Infections / Q000175:diagnosis / Q000662:veterinary*; D016765:Coronavirus, Feline / Q000302:isolation & purification; D016766:Feline Infectious Peritonitis / Q000175:diagnosis* / Q000821:virology*; D005260:Female; D016089:Immunodeficiency Virus, Feline / Q000276:immunology*; D007962:Leukocytes / Q000276:immunology; D012536:Scalp Dermatoses / Q000175:diagnosis / Q000662:veterinary* / Q000821:virology
chemical_list: D000914:Antibodies, Viral; D000956:Antigens, Viral