Titlebook: MRI of the Pituitary Gland; Jean-Fran?ois Bonneville,Fabrice Bonneville,Sonia Book 2016 Springer International Publishing Switzerland 201

OWL

Pituitary Tumors and Pregnancy,noma volume roughly doubles when measured during the last trimester of pregnancy, and the volume of normal pituitary tissue also increases (Fig. 8.2). Increase in volume involves the intrasellar tumoral component as well as the intracavernous one, if any (Fig. 8.3). According to the size of the tumo

malign

DEMUR

宏偉

罐里有戒指

背帶

Pituitary Apoplexy,ituitary apoplexy is sometimes mistaken for a pituitary hemorrhage, which is a much less severe condition or is even asymptomatic, and whose MRI features are different: for instance, demonstration of a fluid-fluid level at the early stage of the disease rules out the diagnosis of pituitary apoplexy.

FLOAT

TOXIN

anaerobic

Pituitary Carcinoma,nosis of pituitary carcinoma are today well specified: the primary tumor must be identified by histology; metastases, subarachnoid or systemic, must not be contiguous with the primary sellar tumor itself; and the structural features of the metastases should be similar to those of the primary tumor.

ADJ

Ectopic Pituitary Adenoma,y gland. They are believed to originate from remaining pituitary cells resting along the path of the embryological formation of the pituitary gland. Ectopic pituitary adenomas can be nonfunctioning or secreting, particularly ACTH, GH, and prolactin secreting. The most common site is by far the sphen