title: [Pseudomyxoma peritonei. Two-case-report].
abstract: BACKGROUND
  Pseudomyxoma peritonei is a disease characterized by an intraperitoneal adenomucinous tumor cell disemination, being cecal appendix the most common etiology.
  
  
  OBJECTIVE
  To report a surgeon's group experience and a detailed up to date literature review.
  
  
  METHODS
  1. A 74 year old woman with a history of four days with mesogastrium and right lower quadrant abdominal pain associated with diarrhea and fever was admitted to our institution. Upon admission she presented with signs of peritoneal irritation and muscular rigidity, leukocytosis of 14,500 cels/mm(3), 89% neutrophils and 1% bands. An acute appendicitis diagnosis was established, being scheduled for diagnostic laparoscopy, during procedure, significant bowel distention was found, so conversion to laparotomy was required. Case 2. A 73 year old male with a history of one year with intermittent abdominal pain at right iliac fossa and hypogastrium was admitted to our institution. Dyspnea, constipation alternating with periods of diarrhea, gastric fullness and heartburn occurred. On physical examination only a palpable tumor occupying mesogastrium and both iliac fossae was noticed, therefore, a laparotomy was performed. In both cases diagnoses were made during procedure, finding multiple scattered multilobulated mucinous tumor implants within the peritoneal cavity. Histopathological studies confirmed a pseudomyxoma peritonei diagnoses.
  
  
  CONCLUSIONS
  Peritoneal pseudomyxoma is a rare malignant tumor with a difficult diagnosis characterized by copious production of mucinous ascites and multiple tumors implants on serosa of intracavitary viscera. The gold standard treatment consists of cytoreductive surgery and perioperative intraperitoneal chemotherapy and/or adjuvant chemotherapy.
authors.affiliation: Cirugía General, Hospital Ángeles del Pedregal, México DF, Mexico.
authors.forename: Ixchel
authors.initials: I
authors.lastname: Carranza-Martínez
authors.affiliation: Cirugía General, Hospital Ángeles del Pedregal, México DF, Mexico.
authors.forename: Gilberto
authors.initials: G
authors.lastname: Cornejo-López
authors.affiliation: Cirugía General, Hospital Ángeles del Pedregal, México DF, Mexico.
authors.forename: Montserrat
authors.initials: M
authors.lastname: Monroy-Argumedo
authors.affiliation: Cirugía General, Hospital Ángeles del Pedregal, México DF, Mexico. dredvilla@me.com.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Villanueva-Sáenz
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D002288:Adenocarcinoma, Mucinous / Q000473:pathology* / Q000601:surgery; D000368:Aged; D001063:Appendiceal Neoplasms / Q000150:complications* / Q000175:diagnosis; D001064:Appendicitis / Q000175:diagnosis; D001065:Appendix / Q000473:pathology*; D003937:Diagnosis, Differential; D003967:Diarrhea / Q000209:etiology; D005260:Female; D006801:Humans; D007813:Laparotomy; D008297:Male; D010534:Peritoneal Neoplasms / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D011553:Pseudomyxoma Peritonei / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D012422:Rupture, Spontaneous
keywords: Pseudomyxoma peritonei; appendiceal neoplasm; neoplasia apendicular; pseudomixoma peritoneal