We report two cases of lumbar spinal dermoid cysts with asymptomatic rupture and migration of free fat droplets into the central canal. No fatty droplets were seen within the lumbar subarachnoid space. The presence of fat droplets within the central canal is unusual because the central canal is rudimentary in adults. We suggest that hydromyelia secondary to tumour and specific tumour morphology might facilitate the selective rupture of dermoids into the central canal. We recommend a follow up of these patients to detect any possible intracranial migration of fat droplets and resultant complications.
[Show abstract][Hide abstract] ABSTRACT: Fat droplets in the cerebrospinal fluid (CSF) is a well-known complication of ruptured intracranial dermoid tumours. We report an unusual case of a ruptured spinal dermoid tumour. MR images showed a tethered spinal cord and an intramedullary fat-containing mass. Fat droplets were revealed in the ventricles and the cisternal spaces on brain CT and brain MR. In the English literature, a ruptured spinal dermoid tumour accompanying a tethered spinal cord is extremely rare.
British Journal of Radiology 03/2006; 79(938):167-9. DOI:10.1259/bjr/17232685 · 2.03 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: Dermoid cysts represent a rare group of tumors manifesting predominantly in adulthood. Rupture of these tumors is well described with it being symptomatic more commonly intracranially as compared to central canal rupture of intraspinally located dermoid tumor which not only is uncommon, but also frequently asymptomatic. The authors report an unusual case of asymptomatic conus dermoid in a young male diagnosed when investigated for a symptomatic isolated central canal rupture. Fatty contents within the central canal may be a harbinger of an underlying dermoid tumor and a whole spine MRI should be performed in such cases to rule out this bizarre presentation.
Journal of Neuro-Oncology 09/2007; 84(1):39-40. DOI:10.1007/s11060-007-9393-4 · 3.07 Impact Factor
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