Peritoneal Tumours

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Peritoneal tumours are most commonly the result of metastatic spread.
The peritoneal cavity is most commonly affected by metastatic tumours that have spread from one
of the abdominal organs, the main primary sites being stomach, ovary, uterus and colon.
Deposits of metastatic tumour are seen as small nodules seeding the peritoneum, which often cause thickening of the omentum.
In disseminated mucin-secreting carcinomas the peritoneal cavity may be filled with mucinous material (pseudomyxoma peritonei).

Tumour may grow as larger nodules and cause adhesions between bowel loops, resulting in bowel obstruction.
Infiltration of tumour in the peritoneum may also cause accumulation of fluid in the peritoneal cavity
in the form of ascites.

Malignant mesotheliomas may develop as primary malignant tumours of the peritoneum. As with the
pleural tumours, these are also predisposed by exposure to asbestos.
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We give here simplified and accurate information about the disease

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Revised: 12-10-2014.