ABSCESOS FACIALES PRODUCIDOS POR ACTINOMYCES PYOGENES (ARCANOBACTERIUM PYOGENES) EN UN TORO SENEPOL
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Arcanobacterium pyogenes es habitante normal de las membranas mucosas de los animales domésticos y actúa como patógeno oportunista, provocando infecciones purulentas en piel y otros órganos. El presente artículo reporta un caso de aislamiento de Arcanobacterium pyogenes (Actinomyces pyogenes) en abscesos subcutáneos de la zona masetérica derecha e izquierda y la región intermandibular de un toro de tres años de edad, de raza Senepol. Se consideraron varios diagnósticos diferenciales: abscesos por aristas de pastos, enfermedad periodontal, linfangitis ulcerativa, actinomicosis, tuberculosis, leucosis y enfermedades primarias (IBR, BVD, brucelosis, leptospirosis y hemoparasitosis); todos ellos resultaron negativos. Los abscesos se formaron luego de una herida accidental en la región intermandibular; fueron lavados y tratados, acompañado de tratamiento parenteral basado en antimicrobianos específicos. Debido a la recidiva del proceso piogénico, a pesar de la terapéutica instaurada, el paciente se sometió a cirugía y se realizó una fistulectomía de los dos abscesos existentes. Posteriormente, se elaboró y administró una bacterina autógena a base de A. pyogenes, la cual favoreció el control de un segundo absceso que se formó posterior al procedimiento quirúrgico. El animal recuperó por completo su condición corporal y no presentó ninguna otra alteración local. La evolución del caso clínico fue de 11 meses desde que se produjo la herida inicial, hasta la total remisión de los síntomas, considerándose de curso crónico.
Facial abscesses produced by Actinomyces pyogenes (Arcanobacterium pyogenes) in a Senepol bull
ABSTRACT
Arcanobacterium pyogenes (formerly Actinomyces pyogenes) a current inhabitant of the mucous membranes of domestic animals, can act as an opportunistic bacterium, producing purulent infections on the skin and in other organs. This paper reports a case of isolation of the bacterium, from subcutaneous abscesses located on the left and right maseteric regions and intermaxillary space, of a 3-year-old Senepol bull. Several differential diagnoses were considered: abscesses caused by splinters, periodontal disease, ulcerative lymphangitis, actynomicosis, tuberculosis, leucosis and primar y diseases (IBR, BVD, Brucellosis, Leptospirosis and blood parasites), all of which resulted negative. Abscesses appeared following an accidental wound in the intermaxillary space. Local and parenteral treatment consisting of drainage, flushing and specific antibiotics were attempted. Due to a relapse of the pyogenic process, despite therapy, the patient underwent a surgical procedure (fistulectomy). An autogenous A. pyogenes bacterin was later administered, favoring the control of a postsurgical new abscesses. The animal completely recovered its body condition over an evolutionary period of 11 months.
Facial abscesses produced by Actinomyces pyogenes (Arcanobacterium pyogenes) in a Senepol bull
ABSTRACT
Arcanobacterium pyogenes (formerly Actinomyces pyogenes) a current inhabitant of the mucous membranes of domestic animals, can act as an opportunistic bacterium, producing purulent infections on the skin and in other organs. This paper reports a case of isolation of the bacterium, from subcutaneous abscesses located on the left and right maseteric regions and intermaxillary space, of a 3-year-old Senepol bull. Several differential diagnoses were considered: abscesses caused by splinters, periodontal disease, ulcerative lymphangitis, actynomicosis, tuberculosis, leucosis and primar y diseases (IBR, BVD, Brucellosis, Leptospirosis and blood parasites), all of which resulted negative. Abscesses appeared following an accidental wound in the intermaxillary space. Local and parenteral treatment consisting of drainage, flushing and specific antibiotics were attempted. Due to a relapse of the pyogenic process, despite therapy, the patient underwent a surgical procedure (fistulectomy). An autogenous A. pyogenes bacterin was later administered, favoring the control of a postsurgical new abscesses. The animal completely recovered its body condition over an evolutionary period of 11 months.
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