Disseminated infection due to Actinomyces meyeri
: case report and review.
We present a case of postoperative pelvic actinomycosis as the result of Actinomyces meyeri, which is, to our knowledge, the first reported case of such an infection due to this species of bacteria.
The results of the vaginal wound cultures revealed a large growth of Actinomyces meyeri. The patient's case was discussed with an Infectious Disease (ID) specialist who recommended an additional two-week course of amoxicillin/clavulanate potassium.
Actinomyces meyeri is an uncommon cause of actinomycosis ; however, there is some evidence that it maybe more common than previously recognized .
Actinomyces meyeri is part of oral microflora and a very uncommon cause of infection in humans.
About 30 ml of purulent material was aspirated with ultrasound guidance and anaerobic culture grew Actinomyces meyeri. He did not have any cough or productive sputum.
Thoracentesis confirmed empyema with pleural fluid growing Actinomyces meyeri
and Streptococcus mitis.
Antimicrobial, antioxidant, hepatoprotective and antitumor properties of these microorganisms (Actinomyces meyeri
, Actinomyces odontolyticus, Bacteroides ovatus, Bifidobacterium bifidum, Bifidobacterium breve, Bifidobacterium dentium, Clostridium butyricum, Clostridium beijerinckii, Enterococcus gallinarum, Enterococcus faecalis, Escherichia coli, Eubacterium aerofaciens, Eubacterium lentum, Lactobacillus spp., Leptotrichia buccalis, Micrococcus spp., Neisseria mucosa, Peptostreptococcus asaccharolyticus, Sarcina spp., Staphylococcus xylosis, Staphylococcus cohni, Staphylococcus capitis, Streptococcus agalactiae) have been only subsequently studied, and each of the strains was assigned a number from No.1 to No.
We herein report a rare case of cervical actinomycosis with paravertebral abscess and spondylitis of the sixth cervical vertebra associated with Actinomyces meyeri
isolation from blood and prevertebral pus cultures in an adult immunocompetent male patient.
thermoviolaceus Nocardiaceae GPR Most similar to Nocardia vermiculata Cardiobacteriaceae GNR Belong to Cardiobacterium hominis, poor reference sequence Flavobacteriaceae GNR Most similar to Chryseobacterium daecheongense Actinomycetaceae GPR Most similar to Actinomyces odontolyticus Actinomycetaceae GPR Most similar to Actinomyces meyeri
Thermoactinomycetaceae GPR Most similar to Laceyella putida Actinomycetaceae GPR 2 separate taxa Streptococcaceae GPC Most similar to Streptococcus oralis Enterobacteriaceae GNR Most similar to Dickeya dieffenbachiae Actinomycetaceae GPR 2 separate taxa Streptococcaceae GPC Most similar to Streptococcus mitis * GPR, gram-positive rods; GNR, gram-negative rods; GPC, gram-positive cocci.
Actinomyces israeli 1 Actinomyces meyeri
2 Actinomyces viscosis 1 Bacteroides caccae 2 Bacteroides capillosus 4 Bacteroides fragilis 5 Bacteroides fragilis group 4 Bacteroides gracilis 1 Bacteroides ovatus 4 Bacteroides ruminicola 1 Bacternides thetaiotaomicron 8 Bacteroides uniformis 5 Bacteroides urealyticus 6 Bifidobacterium ssp.