A clinicoradiological analysis of silent corticotroph adenomas after the introduction of pituitary-specific transcription factors View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2021-06-28

AUTHORS

Abhijit Goyal-Honavar, Sauradeep Sarkar, H. S. Asha, Nitin Kapoor, Rajesh Balakrishnan, Harshad Vanjare, Geeta Chacko, Ari G. Chacko

ABSTRACT

BackgroundSilent corticotroph adenomas (SCAs) are a rare subtype of non-functional pituitary adenoma. While it has been suggested that they are more aggressive and recur more frequently following excision, there is limited literature on the optimum treatment strategy for these tumors, especially regarding the role of radiation therapy in incompletely resected tumors.MethodWe assimilated data from 62 SCAs and 238 other non-functional adenomas (ONAs), defined according to the WHO 2017 criteria that incorporates transcription factor analysis. We compared their clinicoradiological characteristics, such as hormonal levels, tumor configuration, size, and invasiveness. For 52 SCAs and 205 ONAs with serial follow-up imaging, we studied outcomes for progression after subtotal resection with or without radiation therapy or recurrence after gross total resection. Kaplan Meier analysis for recurrence or progression was used to determine the need for a differential treatment strategy for SCAs compared with other non-functional adenomas specifically concerning the role of radiotherapy.ResultsPatients with SCAs present at a younger age than ONAs (43.9 years vs. 48.2 years, p = 0.014), with larger (14.9 cc vs. 9.7 cc, p = 0.006) and more invasive adenomas (61.2% vs. 45.8%, p = 0.021). Overall, SCAs are more likely to recur or progress (48.7 vs. 15.7%, p < 0.001) following excision than ONAs, with significantly poorer event-free survival (Log rank test p < 0.001). Early adjuvant radiotherapy provides favorable outcomes among SCAs with postoperative residual tumor, on par with ONAs. Multivariate analysis identified male gender (HR: 2.217; p = 0.017), MIB index ≥ 3% (HR: 2.116; p = 0.012), and SCA tumor pathology (HR: 3.787; p < 0.001) as factors predicting recurrence.ConclusionsBased on the results of this retrospective, single-center review of 300 non-functional adenomas, we conclude that silent corticotroph adenomas are an aggressive subtype of non-functional pituitary adenomas that are larger, more likely to be invasive, and tend to recur more frequently after a subtotal excision compared with other non-functional adenomas. A gross total resection must be attempted whenever possible and earlier adjuvant radiation is recommended when re-surgery for residual tumor is difficult. More... »

PAGES

3143-3154

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00701-021-04911-2

DOI

http://dx.doi.org/10.1007/s00701-021-04911-2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1139193021

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/34181087


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