Labels:text | screenshot | black | black and white | font | document OCR: t thymic Fig. 23.21 Cushing's syndrome: maligna nstrated by ACTH-secreting carcinoid tumour dem cinoid CT. Ectopic ACTH can be produced by ca CT scans tumours of the thymus. These enhance oducing show in the right picture a 4cm ACTH-F ng aorta. tumour lying just in front of the ascend contrast The tumour has enhanced slightly with alar medium but not as markedly as the vas interior structures. The left scan shows enlarged mediastinal lymph nodes at a higher le See also: . Carcinoid Tumours Cushing's Syndrome