Composite Silent Corticotroph Pituitary Adenoma with Interspersed Adrenocortical Cells: Case Report
- 1 March 1998
- journal article
- case report
- Published by Ovid Technologies (Wolters Kluwer Health) in Neurosurgery
- Vol. 42 (3), 650-654
- https://doi.org/10.1097/00006123-199803000-00039
Abstract
A case report of an extraordinary sellar pituitary tumor composed of corticotrophs and adrenocortical cells is presented. To our knowledge, this is only the second one reported in the literature.. An 18-year-old female patient presented with amenorrhea. Investigations revealed a sellar mass, which was excised transsphenoidally. Histologically, two cell types could be readily distinguished, i.e., small basophilic cells that were positive for periodic acid Schiff and adrenocorticotropic hormone and large cells with abundant, slightly vacuolated, eosinophilic cytoplasm that were negative for periodic acid Schiff and adrenocorticotropic hormone. The nature of the tumor was revealed by ultrastructural examination, thus highlighting the importance of this technique in the investigation of pituitary adenomas. Immunohistochemistry with a panel of steroidogenic dehydrogenases and hydroxylases was positive in the large cells, confirming these as adrenocortical cells. We suggest that the designation “composite silent corticotroph pituitary adenoma with adrenocortical cells” is an appropriate name for this tumor. The explanation for the presence of the two cell types is obscure. Two theories are considered, as were proposed by the authors of the previous case report regarding the same entity (10), i.e., 1) the possibility of misplaced embryonic adrenocortical cells and 2) the presence of uncommitted stem cells that differentiate into adrenocortical cellsKeywords
This publication has 11 references indexed in Scilit:
- Transcription factor adrenal 4 binding protein as a marker of adrenocortical malignancyHuman Pathology, 1995
- Symptomatic Intradural Adrenal Adenoma of the Spinal Nerve RootNeurosurgery, 1993
- Ultrastructural diagnosis of human pituitary adenomasMicroscopy Research and Technique, 1992
- Immunolocalization of 3β-hydroxysteroid dehydrogenase in human adrenal cortex and in its disordersEndocrine Pathology, 1990
- Adrenal Cortical Adenoma in the Spinal Canal of an 8-Year-Old GirlThe American Journal of Surgical Pathology, 1990
- Immunohistochemical Demonstration of Cholesterol Side-chain Cleavage Cytochrome P-450 in Bovine and Human AdrenalsPathology - Research and Practice, 1989
- Immunohistochemical study of cytochrome P-45017α in human adrenocortical disordersHuman Pathology, 1989
- Immunohistochemical study of cytochrome P-45011? -hydroxylase in human adrenal cortex with mineralo- and glucocorticoid excessVirchows Archiv, 1988
- The Spectrum of ACTH-Producing Pituitary LesionsThe American Journal of Surgical Pathology, 1986
- Spolia anatomica, addenda IIThe Anatomical Record, 1917