Abstract
A 67-year-old woman presented with clinical features of hypercortisolism in association with an invasive pituitary macroadenoma. Adrenocorticotropic hormone (ACTH)-dependent Cushing's disease was documented, and the resected tumor was chromophobic, weakly positive with periodic-Schiff reagent, and showed immunostaining for ACTH and β-endorphin in a minority of adenoma cells. Both luteinizing hormone and α-sub-unit staining were also observed, but no follicle-stimulating hormone reactivity was seen. Ultrastructurally, the tumor showed typical features of a gonadotroph adenoma of female type. Immunoelectron microscopy showed that ACTH was not produced in corticotrophs, but in cells with the characteristic features of gonadotrophs. This represents the second report of a plurihormonal gonadotroph adenoma producing sufficient ACTH to result in pituitary-dependent Cushing's disease.
Original language | English (US) |
---|---|
Pages (from-to) | 398-403 |
Number of pages | 6 |
Journal | Acta neuropathologica |
Volume | 102 |
Issue number | 4 |
DOIs | |
State | Published - 2001 |
Keywords
- Cushing's disease
- Gonadotropins
- Pituitary adenoma
- Plurihormonality
- Ultrastructure
ASJC Scopus subject areas
- Pathology and Forensic Medicine
- Clinical Neurology
- Cellular and Molecular Neuroscience