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. 2023 Jan 24;482(3):507–516. doi: 10.1007/s00428-022-03484-4

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Fig. 2 — Representative examples of non-pancreatic ACTH-secreting neuroendocrine neoplasms. A + B Pulmonary typical carcinoid showing bronchocentric growth in A. C Pulmonary atypical carcinoid metastatic to peribronchial lymph node. D The same case shows strong diffuse ACTH expression in the nodal metastasis. E Thymic atypical carcinoid with extensive perineural invasion and stromal sclerosis. F Renal atypical carcinoid