Difference between revisions of "Neuropathology tumours"

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Line 101: Line 101:
|missed lesion?
|missed lesion?
|nil
|nil
|[http://commons.wikimedia.org/wiki/File:Grey_matter_and_white_matter_-_very_high_mag.jpg very high mag.], [http://commons.wikimedia.org/wiki/File:Grey_matter_and_white_matter_-_high_mag.jpg high mag.]
|[[Image:Grey_matter_and_white_matter_-_very_high_mag.jpg |thumb|center|150px|Normal. (WC)]]
|-
|-
|[[Reactive astrocytes]]
|[[Reactive astrocytes]]
Line 109: Line 109:
|missed lesion / close to a lesion; non-specific pathologic process - need more tissue
|missed lesion / close to a lesion; non-specific pathologic process - need more tissue
|nil
|nil
|[http://commons.wikimedia.org/wiki/File:Reactive_astrocytes_-_lfb_-_high_mag.jpg high mag.]
|[[Image:Reactive_astrocytes_-_lfb_-_high_mag.jpg|thumb|center|150px|Reactive astrocytes. (WC)]]
|-
|-
|[[Astrocytoma]] (grade II or worse)
|[[Astrocytoma]] (grade II or worse)
Line 117: Line 117:
|very common, esp. glioblastoma
|very common, esp. glioblastoma
|IDH-1+/-, GFAP+
|IDH-1+/-, GFAP+
|[http://commons.wikimedia.org/wiki/File:Anaplastic_astrocytoma_-_high_mag.jpg high mag.], [http://commons.wikimedia.org/wiki/File:Anaplastic_astrocytoma_-_very_high_mag_-_cropped.jpg very high mag.]
| [[Image:Anaplastic_astrocytoma_-_very_high_mag_-_cropped.jpg | thumb| center| 150px|Astrocytoma. (WC)]]
|-
|-
|[[Metastatic brain tumours|Metastasis]]
|[[Metastatic brain tumours|Metastasis]]
Line 125: Line 125:
|often suspected to have metastatic disease
|often suspected to have metastatic disease
|TTF-1, CK7, CK20, BRST-2
|TTF-1, CK7, CK20, BRST-2
|[http://commons.wikimedia.org/w/index.php?title=File:Metastatic_adenocarcinoma_-_cerebellum_-_very_low_mag.jpg very low mag.], [http://commons.wikimedia.org/w/index.php?title=File:Metastatic_adenocarcinoma_-_cerebellum_-_high_mag.jpg high mag.]
|[[Image:Metastatic_adenocarcinoma_-_cerebellum_-_very_low_mag.jpg | thumb| center|150px |Metastasis. (WC)]]
|-
|-
|[[Meningioma]]
|[[Meningioma]]
Line 133: Line 133:
|may be diagnosed on smear, DDx: choroid plexus, schwannoma
|may be diagnosed on smear, DDx: choroid plexus, schwannoma
|EMA, PR, Ki-67
|EMA, PR, Ki-67
|[http://commons.wikimedia.org/wiki/File:Meningioma_intermed_mag.jpg intermed. mag.]
|[[Image:Meningioma_intermed_mag.jpg |thumb|center|150px|Meningioma. (WC)]]
|-
|-
|[[Schwannoma]]
|[[Schwannoma]]
Line 141: Line 141:
|need frozen section to Dx
|need frozen section to Dx
|S100
|S100
|[http://commons.wikimedia.org/wiki/File:Schwannoma_-_Antoni_A_and_B_-_intermed_mag.jpg intermed. mag.],
|[[Image:Schwannoma_-_Antoni_A_and_B_-_very_high_mag.jpg|thumb|center|150px|Schwannoma. (WC)]]
[http://commons.wikimedia.org/wiki/File:Schwannoma_-_Antoni_A_and_B_-_very_high_mag.jpg very high mag.]
|}
|}
† Rosenthal fibres at the periphery of a lesion are a non-specific finding seen in chronic processes.
† Rosenthal fibres at the periphery of a lesion are a non-specific finding seen in chronic processes.
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