"In contrast to tuberculomas, tuberculous abscesses are filled with pus and have distinct microscopic changes: vascular granulation tissue in the wall, absence of epithelioid granulomatous reaction (seen in tuberculoma) 1,3,4. Furthermore, Mycobacterium tuberculosis can be isolated from the pus, which may not be isolated from tuberculomas in some cases 1."
"Patients with tuberculous abscesses present non-specifically, with focal neurological deficits, seizures or sign and symptoms of raised intracranial pressure 1."