Difference between revisions of "Mesothelioma"

Revision as of 16:42, 20 February 2011

Peritoneal mesothelioma (Image sourced from BioMed Image Archive with permission)

Mesotheliomas
- Malignant - implantation rather than metastasis
- Mainly cattle and dogs, occasionally in other species
- Can be congenital in calves
- Arise from serosa of pericardial, pleural and peritoneal cavities
- Multiple small nodules, may be pedunculated, few milimeters to few centemeters, may present as villous projections
- May be associated with milky or bloody effusions
- Histologically usually appear similar to adenocarcinoma (papillary) or fibrosarcoma (spindle cells)

Has been found in cat, dog, cow, goat and horse
Arise from pericardial, pleural and peritoneal surfaces
May be related to inhalation of asbestos
Grossly:
- Multiple discrete nodules
Microscopically:
- Can appear as a carcinoma or fibrosarcoma depending on which tissue, covering or supporting, is predominant in the neoplasm
Rarely metastasise but are considered malignant

@@ Line 12: / Line 12: @@
 **Histologically usually appear similar to adenocarcinoma (papillary) or fibrosarcoma (spindle cells)
 [http://w3.vet.cornell.edu/nst/nst.asp?Fun=Image&imgID=11611 Image of glandular type mesothelioma in a cat from Cornell Veterinary Medicine]
+==Pleural==
+*Has been found in cat, dog, cow, goat and horse
+*Arise from pericardial, pleural and peritoneal surfaces
+*May be related to inhalation of asbestos
+*Grossly:
+**Multiple discrete nodules
+*Microscopically:
+**Can appear as a carcinoma or fibrosarcoma depending on which tissue, covering or supporting, is predominant in the neoplasm
+*Rarely metastasise but are considered malignant
 [[Category:Peritoneal Cavity - Neoplastic Pathology]]
 [[Category:Peritoneal Diseases - Cattle]][[Category:Peritoneal Cavity Diseases - Dog]]
 [[Category:Neoplasia]]