title: An unusual cause of acromegaly.
abstract: We report a rare case of acromegaly due to a growth hormone releasing hormone-secreting bronchial carcinoid tumour. A 40-year-old man initially presented with acromegalic features, and was subsequently found to have a large lung mass in the right lower zone on chest X-ray. Right lower lobectomy was performed, and the tumour was confirmed to be a bronchial carcinoid tumour on histology. Resection of the tumour led to normalisation of serum insulin-like growth factor 1 level and growth hormone responses to an oral glucose tolerance test.
authors.affiliation: Department of Medicine, Tseung Kwan O Hospital, Tseung Kwan O, Hong Kong.
authors.forename: K Y
authors.initials: KY
authors.lastname: Lock
authors.affiliation: Department of Medicine, Tseung Kwan O Hospital, Tseung Kwan O, Hong Kong.
authors.forename: I T
authors.initials: IT
authors.lastname: Lau
authors.affiliation: Department of Medicine, Tseung Kwan O Hospital, Tseung Kwan O, Hong Kong.
authors.forename: C K
authors.initials: CK
authors.lastname: Yeung
authors.affiliation: Department of Medicine, Tseung Kwan O Hospital, Tseung Kwan O, Hong Kong.
authors.forename: C P
authors.initials: CP
authors.lastname: Chan
mesh_terms: D000172:Acromegaly / Q000209:etiology*; D000328:Adult; D001984:Bronchial Neoplasms / Q000150:complications* / Q000378:metabolism / Q000601:surgery; D002276:Carcinoid Tumor / Q000150:complications* / Q000378:metabolism / Q000601:surgery; D005951:Glucose Tolerance Test; D013007:Growth Hormone-Releasing Hormone / Q000378:metabolism*; D006801:Humans; D007334:Insulin-Like Growth Factor I / Q000378:metabolism; D008297:Male
chemical_list: D007334:Insulin-Like Growth Factor I; D013007:Growth Hormone-Releasing Hormone
keywords: Acromegaly; Insulin-like growth factor I; Tomography, X-ray computed