Brain Lesions in a Cancer Patient

A 71-year-old man with known Colon Cancer presents with altered mental status. Brain MRI reveals multiple ring-enhancing lesions. What’s the diagnosis?

Metastatic adenocarcinoma


A 71-year-old man was hospitalized with altered mental status progressing over the preceding 3 weeks. The patient had a recent diagnosis of adenocarcinoma of the colon with known metastatic lesions in the lung and bones. A gadolinium-enhanced magnetic resonance image of the brain was performed and is shown. What is the most likely diagnosis?

What is the most likely diagnosis?

Group D streptococcus abscesses
Neurocysticercosis
Metastatic adenocarcinoma
Tuberculosis
Primary central nervous system lymphoma

Altered Mental Status, Brain Metastases, Colon Cancer, Metastatic adenocarcinoma, Ring-Enhancing Lesion

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