lltech brain imaging july 2012
TRANSCRIPT
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LLTECH Brain images
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Rat brain
Architectural and cellular informa;on seen at various scales
Myelinated fibers visible
1 mm
500 µm
100 µm
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Neurons cell bodies (dark dots)
Axons/myelin fibers
Capillary
50µm
50µm
50µm 500µm
Human epilep;c parenchyma
Cortex
White maHer
Axons bundles
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Stratum granulosum of the gyrus dentatus
Hippocampus : Coronal sec;on (leK side)
100µm
500µm
CA4 Field
CA1 field of the cornus ammonis
Hippocampal sulcus
Stratum radiatus of the CA1 field
Pyramidal neurons of the
CA4 field 50µm
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Collagen-‐rich matrix Wide fascicles of tumour cells
Large capillary
Fibroblas;c meningioma grade I
500µm
100µm 200µm 200µm
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Transi;onal meningioma grade I
Psammoma surrounding a calcifica;on
Whorls forma;on
Collagen-‐rich matrix
500µm
100µm
50µm
50µm
71679
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Choroid Plexus Papilloma : Xanthomatous changes
Characteris;c cauliflower-‐like masses
Papilla filled with blood
Empty papilla
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Arrows: Fibers transverse cut
Spinal cord : normal ;ssue
500 µm
100 µm
100 µm
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Spinal cord with Iysolecithin-‐induced injury
Lesion
500 µm
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Healthy area: -‐ regular architecture -‐ longitudinally packed fibers
Injured spinal cord – longitudinal cut
Injured area: -‐ disorganized architecture -‐ no visible regular fiber arrangement
-‐ modified contrast 100 µm
100 µm