Brain abscess caused by Porphyromonas gingivalis and Eubacterium nodatum mimicking acute stroke.

We described a case of a 65-year-old man with a brain abscess caused by Porphyromonas gingivalis and Eubacterium nodatum. The patient presented right central facial nerve palsy, mutism and right hemiparesis at the examination. The patient underwent a left frontal craniotomy with evacuation of the brain abscess.

Description of eight human infections caused by Bacteroides pyogenes in a tertiary hospital of northern Spain.

Bacteroides pyogenes is a Gram-negative obligate anaerobe, saccharolytic, non-motile, non-pigment-producing and non-spore-forming rod. Reports of human infections caused by B. pyogenes are scarce, with approximately 30 cases documented in scientific literature.

Disseminated infection associated with bacteraemia and osteomyelitis pubis in an elderly patient.

Objective: We describe a rare case of a disseminated infection associated with hip osteomyelitis.

Methods: A 91-year-old female patient was admitted with oedema of her right leg, fever of 38 °C and data consistent with ruptured Baker's cyst. A disseminated infection including bloodstream infection, pneumonia and multiple abscesses along both lower limbs was observed.

A case of septic arthritis caused by in an HIV patient.

Invasive infections caused by , a Gram-negative rod found in the oral cavity of healthy dogs and cats, are rare but they are increasing worldwide. We report a case of septic arthritis in a native knee joint due to this micro-organism. A 57-year-old man, with a well-controlled chronic HIV infection, attended the Emergency Department because of left knee pain and shivering without measured fever.