Insidious extension of pituitary prolactinoma: two can't-miss findings depicted on a 3.0-T MR system.
J Neuroimaging
; 20(3): 267-71, 2010 Jul.
Article
de En
| MEDLINE
| ID: mdl-19453836
ABSTRACT
BACKGROUND:
In this article, we present two can't-miss findings on preoperative magnetic resonance imaging (MRI) using a 3.0-T MR system resulting in a better surgical option in prolactinoma treatment after emergent of dopamine agonists.METHODS:
We reviewed six cases of pituitary prolactinoma; each had vague or occult bulk of adenoma on 1.5-T MR imaging, which were finally confirmed by surgery. Four cases were preoperatively examined with a 3.0-T MR imaging system. With the 3.0-T MR system, 3-dimension-anisotropy-contrast (3DAC) MR imaging and 3-dimension fast spoiled gradient recalled acquisition in the steady state (3D-FSPGR) imaging were used for depiction of the adenoma.RESULTS:
3DAC imaging revealed cavernous sinus (CS) pathology in three cases, and multiplanar reconstruction of 3D-FSPGR imaging revealed normal pituitary gland and invasive adenoma into the CS in three cases and creeping extension up to the contralateral side of the CS invasion in four cases.CONCLUSIONS:
Two can't-missfindings:
(1) intrasellar creeping extension up to the opposite side of the adenoma main body and (2) intracavernous-localized adenoma with indistinct intrasellar mass should be carefully considered when neurosurgeons perform adenomectomy for patients with prolactinoma, even in cases of microprolactinoma.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Tumeurs de l'hypophyse
/
Traitement d'image par ordinateur
/
Imagerie par résonance magnétique
/
Prolactinome
Type d'étude:
Diagnostic_studies
Limites:
Adult
/
Female
/
Humans
Langue:
En
Journal:
J Neuroimaging
Sujet du journal:
DIAGNOSTICO POR IMAGEM
/
NEUROLOGIA
Année:
2010
Type de document:
Article
Pays d'affiliation:
Japon