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.
Department of Neuroradiology, General Hospital S. Maria della Misericordia, Udine, Italy.
I
I
Aprile
C A
CA
Scott
D
D
Cervesato
C A
CA
Beltrami
A
A
Meo
G
G
Fabris
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