<prompt> False about pseudomyxoma peritonei is:Omental biopsy for diagnosisRefractory to drugsHypehemic intraperitoneal chemotherapy is treatment optionMost commonly associated with appendiceal tumor  <response>: Pseudomyxoma peritonei: It is caused due to the rupture of mucinous adenocarcinoma. The most common primary tumor is appendix ovary. It is the presence of jelly-like substance collected in the cavity and they are usually attached with other abdominal structures. Patient usually presents with abdominal distention, signssymptoms of paial obstruction, weight loss and occurrence of sudden and multiple hernia due to increased abdominal pressure Diagnosis-by omental biospy Staging- PET CT Treatment is usually Cytoreduction which includes omentectomy peritonectomy right hemicolectomy if female, bilateral salphingo-oophrectomy. If there is recurrence due to residual jelly-like substance after surgery, the treatment is Hypothermic Intra-peritoneal Chemotherapy HIPEC which as mitomycin C and cisplatin as impoant agents. Other agents are doxorubicin and docetaxel and these 4 agents are used as single drug or by combination. 