Difference between revisions of "Pleural Neoplasia"
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+ | ===Primary tumours=== | ||
+ | |||
+ | *Rare | ||
+ | *May arise from chest wall and mediastinum | ||
+ | |||
+ | ====Mesothelioma==== | ||
+ | |||
+ | *Has been found in cat, dog, cow, goat and horse | ||
+ | *Arise from pericardial, pleural and [[Peritoneal cavity - neoplastic#Primary tumours|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 | ||
+ | |||
+ | ===Secondary tumours=== | ||
+ | |||
+ | *Also rare | ||
+ | *May arise from transpleural dissemination of [[Lungs - hyperplastic and neoplastic|pulmonary tumours]] (carcinomas and sarcomas) | ||
+ | *Carcinomas from [[Peritoneal cavity - neoplastic#Secondary tumours|abdominal cavity]] may penetrate through diphragmatic lymphatics |
Revision as of 22:24, 31 July 2008
|
Primary tumours
- Rare
- May arise from chest wall and mediastinum
Mesothelioma
- 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
Secondary tumours
- Also rare
- May arise from transpleural dissemination of pulmonary tumours (carcinomas and sarcomas)
- Carcinomas from abdominal cavity may penetrate through diphragmatic lymphatics