Long-term survival in advanced pulmonary large-cell neuroendocrine carcinoma after multi-line immunochemotherapy and anti-angiogenic therapy: a case report
BackgroundPulmonary large-cell neuroendocrine carcinoma (PLCNEC) is a rare and highly aggressive subtype of lung cancer with neuroendocrine features, typically diagnosed at an advanced stage. Its clinical presentation and treatment response resemble th…