Image
|
Slide # |
Tissue |
Mag |
Feature |
 |
41 |
Base of brain |
Gross |
Contrecoup contusions of the orbital surfaces of the frontal lobes and the lateral and inferior surfaces of the temporal lobes. (Contrecoup contusions occur at pointn opposite to point of contact from sudden deceleration). |
 |
42 |
Cerebrum |
Gross |
Contusion (old). Note loss of the crest of the gyrus. (Coup contusions result from blow to stationary head, or a point of impact). |
 |
43 |
Cerebrum |
Gross |
Contusion. Note loss of the crests of two adjacent gyri with relative sparing of the base of the sulci. |
 |
44 |
Cerebral cortex |
LP |
Contusion. Note interruption of the molecular layer which is often spared in an infarct. |
 |
46 |
Brain and Dura |
Gross |
Subdural hematoma (blood between dura and leptomeninges). Brain and dura have been removed from skull. Clotted blood is beneath the dura (dense white curved line) in the subdural space (Resulted from bleeding from torn bridging veins.) Note compression of the cortex. |
 |
47 |
Brain and Dura |
Gross |
Subdural hematoma. Dura has been folded back to reveal clotted blood in subdural space. |
 |
48 |
Brain |
Gross |
Subarachnoid hemorrhage. Image missing. |
 |
49 |
Brain |
Gross |
Same. Often caused by vascular malformations or blood dyscrasias. |
 |
51 |
Circle of Willis |
Gross |
"Berry" or saccular aneurysm, posterior cerebral artery. |
 |
52 |
Circle of Willis |
Gross |
Ruptured saccular or berry aneurysm, anterior cerebral artery. |
 |
53 |
Cerebrum |
Gross |
Ruptured aneurysm with hemorrhage into brain parenchyma. |
 |
54 |
Brain |
Gross |
Ruptured aneurysm with subarachnoid hemorrhage. |
 |
55 |
Saccular aneurysm |
LP |
Elastic stain to show defect in wall of "berry" or saccular aneurysm. |
 |
57 |
Cerebrum |
Gross |
Hypertensive hemorrhage into hemispheric white matter. |
 |
58 |
Cerebellum |
Gross |
Hypertensive hemorrhage into pons with pons rupture into IVth ventricle. |
 |
59 |
Cerebrum |
Gross |
Hypertensive hemorrhage into basal ganglia region (specifically: internal capsule). |
 |
60 |
Cerebrum |
Gross |
Hypertensive hemorrhage into basal ganglia with rupture into lateral ventricles. |
 |
62 |
Brain of neonate |
Gross |
Germinal matrix hemorrhage. |
 |
63 |
Brain of neonate |
Gross |
Same, with intraventricular hemorrhage. |
 |
64 |
Brain, neonate |
Gross |
Intraventricular hemorrhage extension through foramina into subarachnoid space. |
 |
65 |
Skeletal M. (slide 165) |
LP |
Polymyositis. Note disruption of muscle fibes and the scattered inflammatory cells in the interstitium. |
 |
66 |
Skeletal M. |
MP |
Polymyositis. Degenerated skeletal muscle fibers (amorphous pink) with infiltrating macrophages and regenerating fibers with multiple nuclei and more lavender cytoplasm. |
 |
67 |
Skeletal m. |
MP |
Same. Also present are interstitial mononuclear inflammatory cells (small round blue nuclei). |
 |
68 |
Skeletal M. |
HP |
Polymyositis. Closer view of mononuclear inflammatory cells with lymphocytes, plasma cells and macrophages. Few eosinophils are also present. |
 |
71 |
Brain |
HP |
Krabbe's disease (globoid body leukodystrophy). A form of leukodystrophy which are dysmyelinating diseases resulting from either abnormal formation or catabolism of myelin. In Krabbe's disease deficiency of B-galactosidase results in accumulation of galactocerebrosides (curvilinear tubules). |
 |
72 |
Brain |
Gross |
Huntington's Disease (and Normal brain). a type of subcortical degenerative disease. Severe atrophy of the caudate and putamen. Compare to normal brain. |
 |
73 |
Midbrain |
Gross |
Parkinson's Disease. A type of subcortical degenerative disease. Note depigmentation of substantia nigra and to lesser extent of the locus ceruleus. Unknown etiology. |
 |
74 |
Midbrain |
HP |
Lewy body in Parkinson's Disease. Eosinophilic, intracytoplasmic spherical or vermiform inclusion often found in pigmented neurons, characteristic of Parkinson's. |
 |
75 |
Cauda equina |
Gross |
Amyotrophic lateral sclerosis (ALS) or Lou Gehrig's disease. Degeneration of motor neurons in the spinal cord and brainstem results in degeneration of pyramidal tracts and severe atrophy of anterior spinal roots which is demostrated here. |
 |
76 |
Brain |
Gross |
Pick's disease. A type of dementia. Severe atrophy of frontal and temporal lobes. |
 |
77 |
Brain |
HP |
Pick bodies (silver stain). Argyrophilic cytoplasmic inclusions (not specific). |
 |
78 |
Brain |
Gross |
Multiple sclerosis. A type of demyelinating disease of the CNS. Example of a plaque or area of demyelination found throughout the white matter. |