Imaging of brain abscess and cerebral tuberculosis

Imaging of intracranial purulent infection versus tuberculous infectious disease

(1) Purulent infection --- brain abscess

Course:

Abscess wall:

Brain abscess—radiographic manifestations (CT)

Stages of suppuration and abscess wall formation:

Right thalamus abscess

Right-sided thalamic abscess—CT enhanced

Brain abscess

Purulent brain abscess of the left frontal lobe

Right parietal lobe purulent brain abscess

Brain abscess—radiographic manifestations (MRI)

Right thalamic abscess—MR enhanced

Left cerebellar hemisphere abscess

MRI diagnosis of brain abscess

MRI diagnosis of brain abscess (enhanced)

MRI diagnosis of cerebellar abscess - flat scan

MRI diagnosis of cerebellar abscess – enhanced scanning

Left frontal lobe brain abscess - flat sweep

Left frontal lobe brain abscess - enhanced scan

Left parietal occipital lobe brain abscess

Right posterior frontal abscess of the posterior parietal brain

Intracranial infectious diseases: brain abscess

MRI diagnosis

1.

2.

differential diagnosis

2.

Intracranial tuberculosis—tuberculous meningitis

Overview:

CT diagnosis of intracranial tuberculosis

Diagnosis of intracranial tuberculosis MRI

Tuberculous meningitis and left basal ganglion infarction

Tuberculous meningitis and left basal ganglion infarction

Tuberculous meningitis and left basal ganglion infarction

Tuberculous meningitis

Tuberculous meningitis

Intracranial tuberculosis—tuberculoma

Pre-maturation: tuberculous granulomas have not yet formed, and edema appears

Maturity: tuberculous granuloma formation

Caseous necrosis: caseous necrosis or formation of tuberculous abscess within tuberculous granulomas

Tuberculoma—radiographic findings

Flat sheet: ring or broken ring or unshaped calcification

CT：

Pre-maturation: low density area, no reinforcement

Maturity: round, oval or irregular shape of the same density, slightly higher density lesions, unclear boundaries, surrounding edema is not obvious, mostly uniform and significantly strengthened

Cheese-like necrotic phase: slightly lower, slightly higher, or equal density areas, ring strengthening may be seen on augmentation, thin, regular or irregular walls, and edema

MRI signaling characteristics of pathological tissue components of tuberculoma

Types of tuberculosis and characteristics of MRI signaling

Diagnosis and differential diagnosis

Diagnosis should be combined with clinical practice

Differential diagnosis includes granulomas, brain abscesses, cerebrocysticercosis, fungal infections, gliomas, and metastases of various infections disseminated through blood or cerebrospinal fluid

Tuberculous granuloma

Tuberculous granuloma

Multiple intracranial tuberculosis

Multiple intracranial tuberculosis

Multiple intracranial tuberculosis

Multiple intracranial tuberculosis

Intracranial tuberculosis

Diagnostic, differential diagnosis, and comparative imaging