Final answer:
The most common pathogens in brain abscess are bacteria such as Staphylococcus aureus and Streptococcus species. Imaging techniques like CT scan and MRI are used to diagnose brain abscess.
Step-by-step explanation:
The most common pathogens in brain abscess are bacteria. These include Staphylococcus aureus, Streptococcus species, Enterobacteriaceae, and anaerobic bacteria such as Bacteroides and Fusobacterium.
Imaging techniques such as CT scan and MRI are commonly used to diagnose brain abscess. CT scan can show the presence of a well-defined ring-enhancing lesion, while MRI provides a more detailed visualization of the abscess, including its size, location, and surrounding structures.
Overall, understanding the causative pathogens and using appropriate imaging techniques are crucial for the diagnosis and management of brain abscess.