Primary esophageal small-cell neuroendocrine carcinoma managed with induction chemotherapy followed by definitive chemoradiotherapy in an elderly patient: A case report
Background: Primary small-cell neuroendocrine carcinoma of the esophagus is a rare and aggressive malignancy, accounting for less than 3% of esophageal cancers. Its biological behavior resembles that of small-cell lung cancer, with rapid growth, early lymphatic spread, and a poor prognosis. No standardized treatment ex...