[Cerebral abscess by Rhodococcus equi in a HIV-negative patient].

Rhodococcus equi is an unusual cause of infection in humans. Infection in immunocompetent host is extremely rare. This report describes a case of 57 years old patient Rhodococcus brain and pulmonary infection in a patient who did not have HIV or otherwise immunocompromised (either from disease, immunosuppressive medications, or both). He was admitted in the hospital due to neurological symptoms, and diagnosed after undergoing medical tests (brain CT scan and MR) with an intracranial neoplasia. No other disorders in the physical exploration or laboratory findings, included chest X ray were found. After this, he was admitted in Intensive Care Unit due to a respiratory failure, performing CT lung that showed pulmonary nodules. An stereoataxic brain biopsy was performed due to patient worsening. Pulmonary and brain cultures isolated Rhodococcus equi both. He was treated with intravenous vancomycin, cotrimoxazole and rifampicin. Despite the mortality rate among immunocompetent patients is really uncommon, the patient died.