A Poorly Differentiated Esophageal Neuroendocrine Carcinoma With Brain Metastasis.

Esophageal neuroendocrine carcinomas (NECs) are a rare type of esophageal neoplasm that can initially present with vague signs and symptoms. Gastrointestinal manifestations, such as dysphagia and abdominal discomfort, are the most common symptoms of neuroendocrine neoplasms. Although there is a potential for distant metastases because of esophageal NEC, few cases of brain metastasis have been reported. We report a rare case of an esophageal NEC metastasizing to the brain region.