Treatment of a rare and severe infection of central nervous system by Angiostrongylus cantonensis: A case report

Figure 1 Magnetic resonance imaging scans of cervical spine and cranial region. A: Cervical spine magnetic resonance imaging (MRI) (with and without contrast, October 25, 2023) showing enhancement of the cerebral pia mater in the cerebellar hemisphere and brainstem; B: Cervical spine MRI (with and without contrast, October 25, 2023) showing enhancement of the cerebral pia mater at the edge of the upper medulla oblongata; C: Cranial MRI (without contrast and with diffusion weighted imaging, October 24, 2023) showing no intracranial high signal on T2 flair coronal view.

Figure 2 Magnetic resonance imaging scans of brain with diffusion weighted imaging (November 20, 2023). Multiple abnormal enhancement signals (linear enhancement signals) observed in the pia mater and the edge of medulla oblongata. A: T2 flair coronal images showed multiple patchy lesions in the bilateral frontal lobe and periventricular white matter; B: T2 flair sagittal images showed multiple patchy and round, slightly high signals in the white matter of bilateral frontal, temporal, parietal, occipital lobes.

Figure 3 Magnetic resonance imaging scans of brain with diffusion weighted imaging (December 18, 2023). Multiple patchy and round, slightly high signals in the white matter of bilateral frontal, temporal, parietal, occipital lobes, and periventricular area significantly decreased and shrunken compared with before. A: T2 flair coronal view; B: T2 flair sagittal view.

Figure 4 Cerebrospinal fluid cytology results. Numerous pink amorphous materials observed, along with some chronic inflammatory cells and eosinophils. No parasitic organisms or eggs were detected. A: Hematoxylin-eosin × 10; B: Hematoxylin-eosin × 40.