lumpy jaw

ac·ti·no·my·co·sis

(ak'ti-nō-mī-kō'sis),

A disease primarily of cattle and humans caused by the bacterium Actinomyces bovis in cattle and by A. israelii and Arachnia propionica in humans. These actinomycetes are part of the normal bacterial flora of the mouth and pharynx, but when introduced into tissue they may produce chronic destructive abscesses or granulomas that eventually discharge a viscid pus containing minute yellowish granules (sulfur granules). In humans, the disease commonly affects the cervicofacial area, abdomen, or thorax; in cattle, the lesion is commonly found in the mandible.

Synonym(s): actinophytosis (1) , lumpy jaw

[actino- + G. mykēs, fungus, + -osis, condition]

Farlex Partner Medical Dictionary © Farlex 2012

lumpy jaw

n.

See actinomycosis.

The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

A jaw characterised by painful, ‘wood-hard’ fibrotic induration of the parotid and submandibular regions, arising in a background of dental disease—caries, periodontitis—or extractions, due to cervicofacial actinomyces, the most common form of actinomyces infection
Aetiology Actinomyces israeli, A meueri, A naeslundi, A odontolyticus, and Arachnia propionica. Lympy jaw in cows is caused by A bovis
Management Penicillin

Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

lumpy jaw

Infectious disease A jaw characterized by painful, 'wood-hard' fibrotic induration of the parotid and submandibular regions, arising in a background of dental disease–caries, periodontitis, or extractions, due to cervicofacial actinomyces, the most common form of actinomyces infection; LJ in humans is caused by A israeli and others; other findings in cervicofacial actinomycosis include trismus, multiple draining sinus tracts bearing the classic yellow-white sulfur granules, fever, leukocytosis, extension to facial soft tissue, bone and, if untreated, the CNS Treatment Penicillin. See Actinomycosis.

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.