Visual field defects and the size and shape of pituitary adenomas
Kojima, M.; Handa, H.; Hashimoto, N.; Yamagami, T.
Nihon Geka Hokan. Archiv für Japanische Chirurgie 54(2): 100-108
1985
ISSN/ISBN: 0003-9152 PMID: 4037964 Document Number: 251131
Forty-six cases of pituitary adenoma were studied with CT scan. The patterns of visual field defects were well correlated to the size and shape of adenomas. Sixteen of 17 patients with bitemporal hemianopsia had a mass > 20 mm in height from the upper surface of the anterior clinoid process to the tumor summit. Most patients with a huge mass with irregular margin showed atypical field defect. Unilateral field defect was frequently found in cases with irregular shaped mass < 20 mm in height. None of 15 patients with normal visual field had a mass > 20 mm in height.