[Differential diagnosis of bitemporal paracentral visual fields defects in "low-tension glaucoma" and tumors of the pituitary gland (author's transl)].
A 46-year-old patient shows paracentral scotomas in the oblique meridians of the visual fields. Additionally there exists pathologically cupped, atrophical disks which lead to the tentative diagnosis of "low-tension glaucoma". As the scotomas are bitemporally located a tumor near the chiasm must be the cause for these field defects. During the operation a chromophobe adenoma of the pituitary gland was found in the patient. We pointed out that even arcuate scotomas which cross the vertical meridian of the visual field can be caused by an intra- or parasellar tumor. As Hoyt has shown in his investigations in animals one could suppose that these scotomas can be developed from direct compression of the chiasm.
D000236:Adenoma / Q000150:complications*; D003937:Diagnosis, Differential; D005260:Female; D005901:Glaucoma / Q000150:complications*; D006801:Humans; D008875:Middle Aged; D009897:Optic Chiasm; D010524:Peripheral Nervous System Neoplasms / Q000150:complications; D010911:Pituitary Neoplasms / Q000150:complications*; D012607:Scotoma / Q000175:diagnosis* / Q000209:etiology; D014794:Visual Fields
Zur Differentialdiagnose bitemporaler parazentraler Gesichtsfeldausfälle bei "Glaukom ohne Hochdruck" und chiasmanahen Tumoren