摘要

large cell neuroendocrine carcinoma of the lung is defined as poorly differentiated and high-grade neuroendocrine tumor that is morphologically and biologically between atypical carcinoid and small cell lung carcinoma. the prognosis of this type of tumor is poor, specially in advanced disease. we report on a case with atypical presentation, with high blood levels of histamine as apreviously unreported association, and iv stage, in which the diagnosis was made after biopsy of an inguinal mass.

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