Leptomeningeal Carcinomatosis in a Young Patient With Colorectal Cancer: A Case Report.

Leptomeningeal carcinomatosis (LMC) is a rare and fatal complication associated with various solid tumors and hematological malignancies. It presents significant diagnostic challenges due to its nonspecific symptoms and complex clinical course. This case report details the presentation, diagnosis, and implications of LMC in a 33-year-old male with a history of colorectal cancer (CRC) and hemicolectomy. The patient presented with nonspecific symptoms of headache and dizziness. Cerebrospinal fluid cytology revealed the presence of malignant cells, leading to the diagnosis of LMC secondary to CRC. The elusive and multifaceted nature of this condition highlights the necessity for increased clinical awareness and extensive research to improve the understanding and management of LMC.