[Magnetic resonance tomography of the parotid gland: plain diagnosis and Gd-DTPA].
Pathological lesions of the parotid gland were examined comparatively with different examination sequences both plain and with the contrast medium Gd-DTPA. There were 36 benign lesions (parotitis, Sjögren's syndrome, adenoma, etc.) and 24 malignant tumours (squamous cell carcinoma, adenocarcinoma, adenoid cystic carcinoma etc.) Examinations were carried out at 1.0 T with long and short spin echo sequences in transverse and frontal layer orientation before and after application of Gd-DTPA as contrast medium. In the patients suffering from parotitis the best results were obtained with plain T1 and T2 sequences; the contrast medium Gd-DTPA remained without superior diagnostic relevance. However, in Sjögren's syndrome (myoepithelial sialadenitis) administration of the contrast medium always yielded a characteristic honeycomblike pattern. In benign and malignant space-occupying growths MRI supplied additional diagnostic information with Gd-DTPA in respect of defining the tumour borderlines and paths of infiltration. MRI is now a significant diagnostic tool in inflammatory and tumorous lesions of the parotid gland.
Vogl
T
T
Radiologische Klinik, Universität München.
Dresel
S
S
Kang
K
K
Grevers
G
G
Riederer
A
A
Späth
M
M
Lissner
J
J
D000230:Adenocarcinoma / Q000175:diagnosis; D000236:Adenoma / Q000175:diagnosis; D003528:Carcinoma, Adenoid Cystic / Q000175:diagnosis; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis; D003287:Contrast Media; D005682:Gadolinium; D019786:Gadolinium DTPA; D006679:HIV Seropositivity / Q000175:diagnosis; D006801:Humans; D008223:Lymphoma / Q000175:diagnosis; D008279:Magnetic Resonance Imaging; D009942:Organometallic Compounds; D010305:Parotid Diseases / Q000175:diagnosis*; D010307:Parotid Neoplasms / Q000175:diagnosis*; D010309:Parotitis / Q000175:diagnosis; D004369:Pentetic Acid; D012859:Sjogren's Syndrome / Q000175:diagnosis
D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D005682:Gadolinium; D019786:Gadolinium DTPA
Kernspintomographie der Glandula parotis: Nativdiagnostik und Gd-DTPA.