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Pituitary apoplexy caused by ruptured internal carotid artery aneurysm
H Suzuki1, M Muramatsu, K Murao
1Department of Neurosurgery, Mie Prefectural General Medical Center, Mie, Japan. miegmc1@wj8.so-net.ne.jp
Background And Purpose:
We report the first case of pituitary apoplexy caused by the rupture of an intracavernous carotid artery aneurysm embedded in a pituitary adenoma.
Case Description:
A 46-year-old man presented with clinical and CT findings typical of pituitary apoplexy. MRI showed an unusual flow-void protrusion into the intratumoral hematoma, which, however, was not diagnosed as a ruptured aneurysm until severe intraoperative bleeding occurred. Angiography after surgery revealed an intracavernous carotid artery aneurysm.
Conclusions:
The possible association of adenoma and aneurysmal rupture should be kept in mind when assessing any case of pituitary apoplexy.