The multiplicity of the cerebral, cerebellar, and pontine space-occupying lesions as well as their morphological appearance especially their small size, ring enhancement, and facilitated diffusion were radiologically characteristic of cerebral metastasis. Also, MRS was helpful to further characterize the lesions as neoplastic and exclude the inflammatory or granulomatous process.

PET-CT in such cases might be helpful to confirm metastatic lesions and identify primary neoplasms, as in this case the bronchogenic cancer was the primary tumor.