Radiological Growth Patterns of Prolactinomas and Nonfunctioning Adenomas. (3rd July 2017)
- Record Type:
- Journal Article
- Title:
- Radiological Growth Patterns of Prolactinomas and Nonfunctioning Adenomas. (3rd July 2017)
- Main Title:
- Radiological Growth Patterns of Prolactinomas and Nonfunctioning Adenomas
- Authors:
- Imran, Syed Ali
Shankar, Jai
Hebb, Andrea L.O.
Croul, Sidney E.
Clarke, David B. - Abstract:
- Abstract: Objectives: To compare growth patterns of nonfunctioning and prolactin-producing pituitary macroadenomas, and to find whether their specific growth patterns are associated with clinically significant effects on vision. Materials and Methods: From our comprehensive provincial neuropituitary registry, we retrospectively identified 35 randomly selected patients each with nonfunctioning adenomas and prolactinomas >10 mm in any dimension. MRI scans were analyzed to determine the superior and inferior growth, volume, and maximum craniocaudal height of the adenomas. Patients underwent visual field testing at diagnosis. Continuous variables were compared using Student's t test, the Mann–Whitney U test, and ANOVA. Categorical variables were compared using the chi-square test. Results: The mean height of prolactinomas (23.2±11.3 mm) was similar to nonfunctioning adenomas (22.3±9.3 mm, p =0.8), and so were mean tumor volumes (prolactinoma=5.9±8 ml vs. nonfunctioning adenoma=4.8±5 ml, p =0.47). However, the mean suprasellar growth for prolactinomas was 2.9±5.3 mm and 7.3±4.7 mm for nonfunctioning adenomas ( p <0.001), and the mean infrasellar growth was 10.2±8.0 and 5.0±6.6 mm, respectively ( p =0.04). The inferior growth pattern of prolactinomas was associated with a significantly lower likelihood of having visual field abnormalities (11.4 vs. 57.1%, p <0.001). Conclusions: Prolactinomas have predominantly inferior growth compared to nonfunctioning adenomas and are lessAbstract: Objectives: To compare growth patterns of nonfunctioning and prolactin-producing pituitary macroadenomas, and to find whether their specific growth patterns are associated with clinically significant effects on vision. Materials and Methods: From our comprehensive provincial neuropituitary registry, we retrospectively identified 35 randomly selected patients each with nonfunctioning adenomas and prolactinomas >10 mm in any dimension. MRI scans were analyzed to determine the superior and inferior growth, volume, and maximum craniocaudal height of the adenomas. Patients underwent visual field testing at diagnosis. Continuous variables were compared using Student's t test, the Mann–Whitney U test, and ANOVA. Categorical variables were compared using the chi-square test. Results: The mean height of prolactinomas (23.2±11.3 mm) was similar to nonfunctioning adenomas (22.3±9.3 mm, p =0.8), and so were mean tumor volumes (prolactinoma=5.9±8 ml vs. nonfunctioning adenoma=4.8±5 ml, p =0.47). However, the mean suprasellar growth for prolactinomas was 2.9±5.3 mm and 7.3±4.7 mm for nonfunctioning adenomas ( p <0.001), and the mean infrasellar growth was 10.2±8.0 and 5.0±6.6 mm, respectively ( p =0.04). The inferior growth pattern of prolactinomas was associated with a significantly lower likelihood of having visual field abnormalities (11.4 vs. 57.1%, p <0.001). Conclusions: Prolactinomas have predominantly inferior growth compared to nonfunctioning adenomas and are less likely to cause vision changes. RÉSUMÉ: Profils radiologiques de croissance des prolactinomes et des adénomes non fonctionnels. Objectifs : Le but de l'étude était de comparer le profil de croissance de macroadénomes pituitaires non fonctionnels et de prolactinomes et de déterminer si leurs profils de croissance sont associés à des effets significatifs au point de vue clinique sur la vision. Méthodologie : Nous avons identifié rétrospectivement 35 patients atteints d'adénomes non fonctionnels et de prolactinomes de plus de 10 mm dans au moins une dimension, choisis au hasard dans notre registre provincial complet de pathologies neuropituitaires. Nous avons analysé les scans d'IRM afin de déterminer la croissance supérieure et inférieure, le volume et la hauteur crâniocaudale maximale des adénomes. Les patients avaient subi un champ visuel au moment du diagnostic. Nous avons comparé les variables continues au moyen du test t de Student, du test U de Mann-Whitney et de l'ANOVA. Nous avons comparé les variables qualitatives au moyen du chi-carré. Résultats : La hauteur moyenne et le volume moyen des prolactinomes (hauteur 23, 2±11, 3 mm ; volume 5, 9±8 ml) étaient similaires à ceux des adénomes non fonctionnels (hauteur 22, 3±9, 3 mm, p=0, 8 ; volume 4, 8±5 ml, p=0, 47). Cependant, la croissance sus-sellaire moyenne des prolactinomes était de 2, 9±5, 3 mm et celle des adénomes non fonctionnels de 7, 3±4, 7 mm (p<0, 001) et leur croissance sous-sellaire était de 10, 2 ± 8, 0 et 5, 0±6, 6 mm respectivement (p=0, 04). Le profil de croissance inférieur des prolactinomes était associé à une probabilité moindre d'anomalies du champ visuel (11, 4% par rapport à 57, 1%, p<0, 001). Conclusions : Les prolactinomes ont une croissance généralement moindre que les adénomes non fonctionnels et sont moins susceptibles de causer des altérations de la vision. … (more)
- Is Part Of:
- Canadian journal of neurological sciences. Volume 44:Number 5(2017)
- Journal:
- Canadian journal of neurological sciences
- Issue:
- Volume 44:Number 5(2017)
- Issue Display:
- Volume 44, Issue 5 (2017)
- Year:
- 2017
- Volume:
- 44
- Issue:
- 5
- Issue Sort Value:
- 2017-0044-0005-0000
- Page Start:
- 508
- Page End:
- 513
- Publication Date:
- 2017-07-03
- Subjects:
- Pituitary tumors, -- MRI, -- tumor volume, -- visual field
Neurology -- Periodicals
Nervous system -- Surgery -- Periodicals
Electronic journals
616.8 - Journal URLs:
- http://journals.cambridge.org/action/displayJournal?jid=CJN ↗
http://www.cjns.org/home.html ↗
http://cjns.metapress.com/link.asp?id=300307 ↗
http://cjns.metapress.com/openurl.asp?genre=journal&issn=0317-1671 ↗ - DOI:
- 10.1017/cjn.2017.203 ↗
- Languages:
- English
- ISSNs:
- 0317-1671
- Deposit Type:
- Legaldeposit
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- British Library STI - ELD Digital Store
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- 5923.xml