Brain Metastasis in a Young Patient: Consider the Rectum

Area of Science:

• Oncology
• Neurology
• Gastroenterology

Background:

• Colorectal cancer (CRC) frequently metastasizes distantly, but brain metastases are uncommon.
• Brain metastases from CRC are typically associated with concurrent metastases in other organs.

Observation:

• A rare case of a solitary brain metastasis from primary rectal cancer is presented in a 49-year-old patient.
• The patient presented with symptoms of headaches and left-sided weakness.

Findings:

• Primary rectal cancer, young age, lung and liver metastases, and KRAS mutation are identified as risk factors for brain metastases in CRC.
• This case underscores the possibility of solitary brain metastasis from rectal cancer.

Implications:

• Intracranial imaging should be considered in the staging of CRC for patients with identified risk factors for brain metastasis.
• Early detection through appropriate imaging may improve patient outcomes and management strategies for colorectal cancer brain metastases.