title: Cytologic diagnosis of pseudomyxoma peritonei: common and uncommon causes.
abstract: Pseudomyxoma peritonei (PP) refers to accumulation of mucus in the peritoneal cavity, regardless of cause or pathogenesis. We have reviewed 8 cases of PP diagnosed in our institution over the past 5 years. Pertinent cytologic features include a mucinous background with mesothelial cells and histiocytes. Two cases contained rare clusters of neoplastic epithelial cells, with low-grade nuclear features of malignancy. The origin and nature of the parent neoplasms were variable, with no reflection of the cytologic features of PP.
authors.affiliation: Department of Pathology, Wayne State University, Detroit, MI 48201, USA.
authors.forename: L R
authors.initials: LR
authors.lastname: Pisharodi
authors.forename: C W
authors.initials: CW
authors.lastname: Bedrossian
mesh_terms: D000368:Aged; D001063:Appendiceal Neoplasms / Q000150:complications; D001707:Biopsy, Needle; D003536:Cystadenocarcinoma / Q000150:complications; D005260:Female; D006801:Humans; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000150:complications; D011553:Pseudomyxoma Peritonei / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology*