The role of Crooke’s changes in recurrence and remission after gamma knife radiosurgery

Purpose The objective of this study is to evaluate the role of Crooke’s changes (CC) in normal the peri-tumoral anterior pituitary gland, in patients with Cushing’s disease (CD) with a histopathological confirmed corticotroph adenoma, and determine if there is any difference in the recurrence and re...

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Bibliographic Details
Published in:Journal of neuro-oncology 2019-03, Vol.142 (1), p.171-181
Main Authors: Cordeiro, Diogo, Xu, Zhiyuan, Nasser, Mohammed, Lopes, Beatriz, Vance, Mary Lee, Sheehan, Jason
Format: Article
Language:English
Subjects:
Adenoma
Adenoma - pathology
Adenoma - radiotherapy
Adolescent
Adrenocorticotropic hormone
Adult
Aged
Clinical Study
Corticotrophs - pathology
Cushing syndrome
Cushing's disease
Cytokeratin
Female
Humans
Hydrocortisone
Male
Medicine
Medicine & Public Health
Middle Aged
Nervous system diseases
Neurology
Oncology
Patients
Pituitary (anterior)
Pituitary ACTH Hypersecretion - pathology
Pituitary ACTH Hypersecretion - radiotherapy
Pituitary gland
Pituitary Gland - pathology
Pituitary Neoplasms - pathology
Pituitary Neoplasms - radiotherapy
Radiosurgery
Radiosurgery - instrumentation
Remission
Remission Induction
Retrospective Studies
Statistical analysis
Tumors
Urine
Young Adult
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Summary:Purpose The objective of this study is to evaluate the role of Crooke’s changes (CC) in normal the peri-tumoral anterior pituitary gland, in patients with Cushing’s disease (CD) with a histopathological confirmed corticotroph adenoma, and determine if there is any difference in the recurrence and remission rates in CD patients after treatment with Gamma Knife Radiosurgery (GKRS). Methods All patients treated with GKRS for CD from 2005 to 2016 at our institution were identified. Patients had a confirmed adrenocorticotropic (ACTH)-secreting adenoma, i.e. corticotroph adenoma, and normal pituitary gland included in the surgical specimen, and specimens were stained with hematoxylin and eosin and also immunostaining for cytokeratin and ACTH. Statistical analyses were performed in a total of 61 patients who met the inclusion criteria. Additionally, we analyzed 20 patients in each group, with and without CC, after they were matched in a propensity score fashion. Results Endocrine remission defined as, a normal 24 h urine free cortisol while off suppressive medication, occurred in 48 patients (78.7%), with 76.9% in those with CC and 81.8% in those without CC. There was no statistical significant difference between the two groups in regarding remission (p = 0.312) or recurrence (p = 0.659) in either the unmatched or matched cohorts. Conclusion The presence or absence of CC in normal pituitary gland does not appear to confer a lower rate of remission or a higher rate of recurrence after GKRS. Patients with pituitary corticotroph adenomas that present with CC features may be well served by Stereotactic radiosurgery (SRS).
ISSN:0167-594X
1573-7373
DOI:10.1007/s11060-018-03078-8