<prompt> Pseudomyxoma peritonei occurs inMucinous cystadenocarcinoma of ovaryCarcinoma endometriumOvarian dermoidFibroid uterus  <response>: i.e. Mucinous cystadenocarcinoma of the ovary: 375-388-Shaw9s 15th 1003-Bailey Love 25th 476-CSDT 13thPSEUDOMYXOMA PERITONEI Caused by low grade mucinous cystadenocarcinomas of the appendix or ovary Recent studies suggest that most cases arise from a primary appendiceal tumour with secondary implantation on to one or both ovaries The abdomen is filled with a yellow jelly, large quantities of which are often encysted Painless and there is frequently no impairment of general health Pseudomyxoma peritonei does not give rise to extraperitoneal metastasis CT and USG shows a distinctive peritoneal scalloping of the liver margin, calcified plaques, ascites and low density masses The appendix if present should be excised together with any ovarian tumour Adjuvant intracavitary radiotherapy - for residual disease 