6533b7d6fe1ef96bd1266e3b
RESEARCH PRODUCT
Vergleich der Wertigkeit von Magnetresonanztomographie und Computertomographie bei Patienten mit Nelson-Syndrom
Stiebler HKlingmüller DAllmendinger SChrist FKersjes WBockisch Asubject
Hypophysectomybusiness.industrymedicine.medical_treatmentOptic chiasmNelson SyndromeInfundibulummedicine.anatomical_structureTumour developmentCavernous sinusmedicineRadiology Nuclear Medicine and imagingBilateral adrenalectomyTomographyNuclear medicinebusinessdescription
The hypophyses of 13 patients with Nelson syndrome following bilateral adrenalectomy were examined by MRI and CT. Diffuse enlargement of the hypophysis was demonstrated in 8 patients by CT and in 9 by MRI. Compared with CT, MRI provides better demonstration of tumour development, such as abnormal convexity of the cranial margin of the hypophysis (MRI 4/13, CT 1/13), displacement of the infundibulum (MRI 4/13, CT 0/13) or optic chiasm (MRI 2/13, CT 0/13). MRI also provides diagnostically important differentiation between scar tissue and recurrence of tumour following hypophysectomy (MRI 1/3, CT 0/3) and more accurate demonstration of infiltration of the cavernous sinus (MRI 4/13, CT 2/13). CT is superior only in showing the floor of the sella. MRI is the method of choice for imaging in cases of Nelson syndrome.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1992-02-01 | RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren |