Lung

Neuroendocrine neoplasms (NENs) occur throughout the body, the most common sites including pulmonary, digestive and skin. NENs range from well differentiated neuroendocrine tumours (NETs) to poorly differentiated carcinomas (NECs, small- and large-cell type) (World Health Organisation [WHO] Classification 2017) having varying potential, low grade and indolent to high grade and aggressive. ................
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