pyogranuloma

pyogranuloma

an inflammatory process in which there is infiltration of polymorphonuclear cells into a more chronic area of inflammation characterized by mononuclear cells, macrophages, lymphocytes and possibly plasma cells.

pyogranuloma idiopathic
see idiopathic sterile granuloma.
References in periodicals archive ?
The first case of feline infectious peritonitis--like pyogranuloma in a ferret infected by coronavirus in Japan.
Histological examination of the paraphimosed penis was indicative of pyogranuloma.
KeyWords: Habronemiasis, pyogranuloma, penis, urethra, penile amputation.
Histopathology of penile growth was indicative of pyogranuloma.
Conditions new to this edition include: Facial dermatitis of persian and himalayan cats, Spiculosis, Calcinosis circumscripta, Canine eosinophilic granuloma, Sterile granuloma and pyogranuloma syndrome, Cutaneous asthenia (Ehlers-Danlos Syndrome), Epidermis bullosa acquisita, Feline idiopathic ulcerative dermatitis, Mucocutaneous pyoderma, Proliferative arteritis of the nasal philtrum, Vasculopathy of grayhounds, Vesicular cutaneous lupus of the shetland sheepdog and collie, Metatarsal fistulation of the german shepherd dog, Acrodermatitis of bull terriers canine ear margin seborrhea, Exfoliative cutuneous lupus of the german shorthaired pointer, Topical corticosteroid reaction, Alopecia X, Acquired pattern alopecia, Cyclical flank alopecia, Feline paraneoplastic alopecia.
Cellular composition of Corynebacterium pseudoteuberculosis pyogranulomas in sheep.
Microscopically, expending, infiltrating and distorting the dermis, panniculum and adjacent skeletal muscle, there were focally extensive areas with multiple pyogranulomas containing large, central, and irregular colonies of branching filamentous bacteria (Figure 1C).
In all forms of the disease, pathologic findings are characterized by poorly encapsulated pyogranulomas that may spread locally or disseminate along lymphatics.
Histologically, the lesion was characterized by multifocal areas of pyogranulomas, with bone lytic areas, infiltrated predominantly by neutrophils, epithelioids and macrophages cells, and presence of "coryneform" organisms, surrounded by a fibrous tissue.
pyogenes infections in livestock have been attributed to formation of pyogranulomas, intracellular location of bacterium, and limitation of conventional drugs to reach therapeutic concentrations inside lesions (RADOSTITS et al.
The disease affects many organs, usually inducing fatal immunopathologic disease characterized by disseminated pyogranulomas and severe inflammatory damage to serosal membranes.