Difference between revisions of "Neuropathology tumours"

Jump to navigation Jump to search

Neuropathology tumours (view source)

Revision as of 05:03, 29 October 2014

3,418 bytes removed ,  05:03, 29 October 2014
→‎Metastatic brain tumours
Line 148: Line 148:


==Metastatic brain tumours==
==Metastatic brain tumours==
{{Main|Metastases}}
{{Main|Brain metastasis}}
===General===
*Most common brain tumour in adults.<ref>{{Cite journal  | last1 = Pekmezci | first1 = M. | last2 = Perry | first2 = A. | title = Neuropathology of brain metastases. | journal = Surg Neurol Int | volume = 4 | issue = Suppl 4 | pages = S245-55 | month =  | year = 2013 | doi = 10.4103/2152-7806.111302 | PMID = 23717796 }}</ref><ref>{{Cite journal  | last1 = Suki | first1 = D. | last2 = Khoury Abdulla | first2 = R. | last3 = Ding | first3 = M. | last4 = Khatua | first4 = S. | last5 = Sawaya | first5 = R. | title = Brain metastases in patients diagnosed with a solid primary cancer during childhood: experience from a single referral cancer center. | journal = J Neurosurg Pediatr | volume = 14 | issue = 4 | pages = 372-85 | month = Oct | year = 2014 | doi = 10.3171/2014.7.PEDS13318 | PMID = 25127097 }}</ref>
*Common metastases (in order): [[lung cancer|lung]], [[invasive breast cancer|breast]], [[renal cell carcinoma|kidney]], [[Gastrointestinal pathology|gastrointestinal]], [[melanoma]].<ref>{{Ref TN2007|NS9}}</ref>
*Percentage of previously diagnosed cancers with brain metastases - by primary site: lung cancer 19.9%, melanoma 6.9%, breast cancer 5.1%, renal cancer 6.5%, colorectal cancer 1.8%.<ref name=pmid15254054>{{Cite journal  | last1 = Barnholtz-Sloan | first1 = JS. | last2 = Sloan | first2 = AE. | last3 = Davis | first3 = FG. | last4 = Vigneau | first4 = FD. | last5 = Lai | first5 = P. | last6 = Sawaya | first6 = RE. | title = Incidence proportions of brain metastases in patients diagnosed (1973 to 2001) in the Metropolitan Detroit Cancer Surveillance System. | journal = J Clin Oncol | volume = 22 | issue = 14 | pages = 2865-72 | month = Jul | year = 2004 | doi = 10.1200/JCO.2004.12.149 | PMID = 15254054 }}</ref>
**''Lung'' followed by ''kidney'' is the order in a smaller series.<ref>{{Cite journal  | last1 = Schouten | first1 = LJ. | last2 = Rutten | first2 = J. | last3 = Huveneers | first3 = HA. | last4 = Twijnstra | first4 = A. | title = Incidence of brain metastases in a cohort of patients with carcinoma of the breast, colon, kidney, and lung and melanoma. | journal = Cancer | volume = 94 | issue = 10 | pages = 2698-705 | month = May | year = 2002 | doi =  | PMID = 12173339 }}</ref>
 
===Microscopic===
Appearance varies by subtype.
 
Features of metastatic carcinoma:
*Tubule formation/glands.
*Usually well-circumscribed/sharply demarcated from surrounding tissue.
*Usually nuclear atypia including:
**Nuclear hyperchromasia.
**Variation of nuclear size.
**Variation of nuclear shape.
*Mitoses - common.
 
DDx:
*Primary brain tumour - ''see [[Neuropathology_tumours#Primary_versus_secondary|primary brain tumour versus secondary brain tumour]]''.
 
====Images====
<gallery>
Image:Metastatic_adenocarcinoma_-_cerebellum_-_very_low_mag.jpg | [[CRC]] metastasis to cerebellum - very low mag. (WC)
Image:Metastatic adenocarcinoma - cerebellum - intermed mag.jpg| CRC metastasis to the cerebellum - intermed. mag. (WC)
Image:Metastatic_adenocarcinoma_-_cerebellum_-_high_mag.jpg | CRC metastasis to cerebellum - high mag. (WC)
Image:Brain metastasis - high mag.jpg | Brain metastasis - high mag. (WC)
</gallery>
 
===IHC===
{{Main|Immunohistochemistry}}
*Carcinoma: pankeratin +ve.
**[[Lung adenocarcinoma]] and SCLC: TTF-1 +ve, CK7 +ve, CK20 -ve.
**Breast carcinoma: CK7 +ve, ER +ve, PR +ve, BRST2 +ve/-ve.
**Colorectal carcinoma: CK7 -ve, CK20 +ve, CDX2 +ve, TTF-1 -ve.


==Infiltrative astrocytomas==  
==Infiltrative astrocytomas==  
Michael
48,830

edits

Retrieved from "https://librepathology.org/wiki/Special:MobileDiff/34541"

Navigation menu