Abstract
Cushing's syndrome caused by an ectopic tumour secreting adrenocorticotropic hormone (ACTH) is not common. Furthermore, an ACTH-secreting panreatic neoplasm is extremely rare. We present a 27-year old female patient suffering from a pancreatic neuroendocrine tumour (p-NET) with extensive pelvic metastases, which could secrete ACTH and cause Cushing's syndrome. The postoperative pathologic examinations of this patient prompted pancreatic poorly differentiated neuroendocrine tumour with extensive metastases of bilateral ovarian, uterus and pelvic peritoneum. The immunohistochemical staining of her tumour tissues was positive for Chromogranin A, Synaptophysin and ACTH. The main aim of this article is to share the experience of her diagnosis and treatment and to review the relevant literature, with an emphasis on discussing the possible transfer modes. Moreover, we strongly suggest that a careful examination of pelvic cavity during the follow-up of patients diagnosed as ACTH-secreting p-NET should also be carried out.
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