Carcinoid syndrome caused by pulmonary neuroendocrine tumor liver metastases: A case report

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Introduction: Neuroendocrine tumors (NETs) comprise a heterogeneous groups of maliganancies that arise from neuroencrine cells throughout the body and most commonly originate from the small intestine, lung,and rectum. Pulmonary NETs originate from pulmonary neuroendocrine cells that occur as individual cells or small pulmonary neuroendocrine cell. Although carcinoid tumors are considered low or intermediate-grade tumors, they metastasize to regional lymph nodes and distant organs, and the most common sites metastases are the liver and bone.

Aim(s): Case presentation: A 41-year-old Chinese man complaining of recurrent watery diarrhea along with flushing for 3 months was admitted to our hospital. He was diagnosed asymptomatic pulmonary neuroendocrine tumor and resected surgically in an external hospital 1 year ago. After examination, this patient was diagnosed carcinoid syndrome caused by pulmonary neuroendocrine tumor liver metastases.

Materials and methods: We retrospectively analyzed a patient with a pulmonary NET liver metastases treated and followed-up in our institution since 2023.

Conference:

Presenting Author: Tang Y

Authors: Tu R, Tang Y, Wang Y, Zhu Y, Kui X,

Keywords: pulmonary neuroendocrine tumor, liver metastases, Transcatheter Arterial Embolization, chemotherapy,