Capnocytophaga spp. are part of the oral flora of humans and animals, being responsible for skin and soft tissues infections and invasive infections. Microbiological identification can be difficult due to its slow growth. We present a case of infection caused by this bacteria in the form of an extracerebral intracranial abscess, presenting as a frontal mass that posed some diagnostic challenges. A surgical drainage was performed together with antibiotic therapy with favourable outcome. This microorganism was identified in the second week of treatment and then a careful history revealed a dog bite days prior to the initial symptoms. This could have been the site of entry to a posterior focalization.