II. Pathophysiology
- Gram Positive, aerobic, nonmotile rods
- Previously categorized in the genus Corynebacterium
- Natural sources
- Soil
- Manure
- Animal hosts (Cattle, Sheep, Deer, Bears, Dogs, Cats)
-
Immunocompromised patients (acquired via inhalation)
- HIV Infection (see Pulmonary Manifestations of HIV)
- Organ transplant recipients
III. Findings
- Necrotizing Pneumonia
- Upper lung lobe Nodules, infiltrates
- Upper lung lobe cavitary lesions with air fluid levels (distinguishes from Tuberculosis)
- Pleural Effusion
IV. Differential Diagnosis
V. Resources
- Rhodococcus equi (Stat Pearls)