Fig. 3From: Isolated ACTH deficiency during single-agent pembrolizumab for squamous cell lung carcinoma: a case reportPituitary challenge tests. Horizontal axis: time course. Vertical axis: hormone levels. a Corticotropin-releasing hormone test. b Thyrotropin-releasing hormone test. c Gonadotropin-releasing hormone test. d Growth hormone-releasing peptide 2 test. ACTH, adrenocorticotropic hormone; FSH, follicle stimulating hormone; GH, growth hormone; LH, luteinizing hormone; PRL, prolactin; TSH, thyroid stimulating hormoneBack to article page