J Korean Neurosurg Soc.  2013 Sep;54(3):250-252. 10.3340/jkns.2013.54.3.250.

Incidental Superior Hypophygeal Artery Aneurysm Embedded within Pituitary Adenoma

• Choi HS
• Kim MS
• Jung YJ
• Kim OL

• KMID: 2190908
• DOI: http://doi.org/10.3340/jkns.2013.54.3.250

Abstract

Intra-cranial aneurysm can be incidental findings in patients with pituitary adenomas, and are usually located outside the pituitary region. However, the coexistence of intrasellar (not intracranial) aneurysms with pituitary adenomas is extremely rare. We report a patient with an incidental superior hypophygeal aneurysm embedded within a non-functional pituitary adenoma which was treated by transsphenoidal surgery after endovascular coil embolization.

Keyword

Pituitary adenoma; Aneurysm; Therapeutic embolization; Surgical procedure

MeSH Terms

Aneurysm*
Arteries*
Embolization, Therapeutic
Humans
Incidental Findings
Pituitary Neoplasms*

Figure

• 

  Fig. 1 Contrast-enhanced T1-wighted magnetic resonance images in the axial (A) and coronal planes (B) demonstrate the aneurysm (arrow) embedded in the pituitary adenoma, located inside the sella turcica and medial to the right internal carotid artery (ICA). Three-dimensional computed tomography angiogram images (C) demonstrate a saccular aneurysm in the opthalmic segment of the right distal ICA (arrow). Four-vessels angiogram (D) demonstrates a right superior hypophyseal aneurysm (arrow).

• 

  Fig. 2 Four-vessels angiogram after embolization demonstrates the aneurysm that was densely packed with coils (arrow). Anteroposterior view (A), lateral view (B) and three-dimensional view (C).

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  Fig. 3 Contrast-enhanced T1-wighted magnetic resonance (MR) image coronal (A) axial coronal planes (B) at 8 months after transsphenoidal surgery. The MR images demonstrate complete obliteration of the aneurysm and there was no sign of regrowth of the adenoma.

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