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Iglesias P, Biagetti B, Araujo-Castro M, Alcázar V, Guerrero-Pérez F, Rivero N, Casteràs A, Gómez CG, Izquierdo BG, Torres VV, Pascual-Corrales E, Pavón I, Villabona C, Cordido F, Díez JJ. Clinical Significance of T2-Weighted Sequence Intensity on Magnetic Resonance Imaging in Clinically Non-Functioning Pituitary Adenomas. Exp Clin Endocrinol Diabetes 2023; 131:631-638. [PMID: 38056490 DOI: 10.1055/a-2197-3566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
BACKGROUND Little is known about the relationship between signal intensity patterns on T2-weighted magnetic resonance imaging (MRI) in non-functioning pituitary adenomas (NFPAs). OBJECTIVE In this study, the clinical, hormonal, histological features, and therapeutic responses were evaluated according to the T2 signal intensity in NFPAs. METHODS This retrospective and multicenter study included a group of 166 NFPA patients (93 men, 56%, mean age 58.5 ±14.8 yr). RESULTS Approximately half of the tumors (n=84, 50.6%) were hyperintense, while 34.3% (n=57) and 15.1% (n=25) were iso- and hypointense, respectively. The median maximum tumor diameter of the isointense group [16 (13-25) mm] was significantly lower than that of the hyperintense [23 (16.6-29.7) mm] group (p=0.003). Similarly, the tumor volume of the isointense group [1,523 (618-5,226) mm3] was significantly lower than that of the hyperintense [4,012 (2,506-8,320) mm3] group (p=0.002). Chiasmatic compression occurred less frequently in tumors with isointense signal characteristics (38.6%) compared to tumors with hypointense (68%) and hyperintense (65.5%) signal characteristics (p=0.003). Invasive adenomas (p=0.001) and the degree of cavernous sinus invasion (p<0.001) were more frequent in the hyperintense adenoma group compared to the remaining groups. Plurihormonal tumors and silent lactotroph adenomas were more frequent in the isointense tumor group. CONCLUSION In conclusion, hyperintensity on T2-weighted MRI in NFPAs is associated with larger and more invasive tumors compared to isointense NFPAs.
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Affiliation(s)
- Pedro Iglesias
- Department of Endocrinology, Hospital Universitario Puerta de Hierro Majadahonda (Majadahonda), Madrid, Spain. Instituto de Investigación Sanitaria Puerta de Hierro Segovia de Arana (IDIPHISA)
| | - Betina Biagetti
- Department of Endocrinology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Marta Araujo-Castro
- Department of Endocrinology, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Victoria Alcázar
- Department of Endocrinology, Hospital Universitario Severo Ochoa, Leganés, Madrid, Spain
| | - Fernando Guerrero-Pérez
- Department of Endocrinology, Hospital Universitari de Bellvitge (L'Hospitalet de Llobregat), Barcelona, Spain
| | - Noelia Rivero
- Department of Endocrinology, Complexo Hospitalario Universitario de A Coruña and Universidad de A Coruña, Spain
| | - Anna Casteràs
- Department of Endocrinology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Carlos García Gómez
- Department of Endocrinology, Hospital Universitario Puerta de Hierro Majadahonda (Majadahonda), Madrid, Spain. Instituto de Investigación Sanitaria Puerta de Hierro Segovia de Arana (IDIPHISA)
| | - Belén García Izquierdo
- Department of Endocrinology, Hospital Universitario Puerta de Hierro Majadahonda (Majadahonda), Madrid, Spain. Instituto de Investigación Sanitaria Puerta de Hierro Segovia de Arana (IDIPHISA)
| | - Víctor Viedma Torres
- Department of Endocrinology, Hospital Universitario de Getafe, Getafe, Madrid, Spain
| | | | - Isabel Pavón
- Department of Endocrinology, Hospital Universitario de Getafe, Getafe, Madrid, Spain
| | - Carles Villabona
- Department of Endocrinology, Hospital Universitari de Bellvitge (L'Hospitalet de Llobregat), Barcelona, Spain
| | - Fernando Cordido
- Department of Endocrinology, Complexo Hospitalario Universitario de A Coruña and Universidad de A Coruña, Spain
| | - Juan J Díez
- Department of Endocrinology, Hospital Universitario Puerta de Hierro Majadahonda (Majadahonda), Madrid, Spain. Instituto de Investigación Sanitaria Puerta de Hierro Segovia de Arana (IDIPHISA)
- Department of Medicine, Universidad Autónoma de Madrid, Spain
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