title: Cushing's syndrome secondary to ectopic ACTH secretion from carcinoid tumor within an ovarian mature teratoma: a case report and review of the literature.
abstract: A 46-year-old woman with Cushing's syndrome secondary to ectopic adrenocorticotropic hormone (ACTH) secretion caused by primary ovarian mature teratoma with carcinoid components was presented in our case. The patient manifested sustained hypercortisolemia without circadian rhythm and a lack of suppression of either low-dose dexamethasone suppression test (LDDST) or high-dose dexamethasone suppression test (HDDST). There was no evidence of a pituitary mass or secretion of other hormones. After careful clinical evaluation, no other tumor masses were found. Resection of the ovarian tumors led to sharp reduction of serum ACTH and cortisol concentrations. Immunohistochemistry showed positivity in CgA, Syn, CK, NSE. To the best of our knowledge, there are rare reports of an ACTH-secreting carcinoid components located in an ovarian mature teratoma, and bilateral ovarian mature teratoma makes it rarer.
authors.affiliation: Department of Obstetrics and Gynecology, The First Affiliated Hospital of Wenzhou Medical University , Zhejiang Province, Wenzhou , China.
authors.forename: Baoyou
authors.initials: B
authors.lastname: Huang
authors.forename: Xueqing
authors.initials: X
authors.lastname: Wu
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhou
authors.forename: Yan
authors.initials: Y
authors.lastname: Hu
authors.forename: Hongqin
authors.initials: H
authors.lastname: Zhao
authors.forename: Hua
authors.initials: H
authors.lastname: Zhu
authors.forename: Qian
authors.initials: Q
authors.lastname: Zhang
authors.forename: Feiyun
authors.initials: F
authors.lastname: Zheng
mesh_terms: D000182:ACTH Syndrome, Ectopic / Q000175:diagnosis / Q000503:physiopathology* / Q000601:surgery; D002276:Carcinoid Tumor / Q000175:diagnosis / Q000378:metabolism / Q000503:physiopathology* / Q000601:surgery; D003480:Cushing Syndrome / Q000175:diagnosis / Q000209:etiology* / Q000517:prevention & control; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000175:diagnosis / Q000378:metabolism / Q000503:physiopathology* / Q000601:surgery; D013724:Teratoma / Q000175:diagnosis / Q000378:metabolism / Q000503:physiopathology* / Q000601:surgery; D016896:Treatment Outcome