Two rare lumbar tumours with unusual MRI characteristics.
We present two rare lumbar lesions with similar MRI features: high signal on T1-weighted and proton density images and low signal on T2-weighted images; a melanotic schwannoma, and a giant-cell tumour-like lesion. Melanin in the first case and haemosiderin and metahaemoglobin in the second were responsible for the MRI characteristics.
Aprile
I
I
Department of Neuroradiology, General Hospital S. Maria della Misericordia, Udine, Italy.
Scott
C A
CA
Cervesato
D
D
Beltrami
C A
CA
Meo
A
A
Fabris
G
G
D000368:Aged; D005260:Female; D018212:Giant Cell Tumor of Bone / Q000175:diagnosis* / Q000473:pathology; D006485:Hemosiderin / Q000032:analysis; D006801:Humans; D008159:Lumbar Vertebrae / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008543:Melanins / Q000032:analysis; D008706:Methemoglobin / Q000032:analysis; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis* / Q000473:pathology; D013125:Spinal Neoplasms / Q000175:diagnosis* / Q000473:pathology
D008543:Melanins; D008706:Methemoglobin; D006485:Hemosiderin