Extraovarian primary peritoneal carcinoma. A case report

Primary peritoneal psammocarcinoma

“…Although PPP is a form of EOPPC of lower grade, it needs to be differentiated from high‐grade EOPPC. Large proportion of psammoma bodies, less aggressive cytological features such as absent–moderate nuclear atypia, and rare mitotic figures will help in differentiating PPP from EOPPC …”

“…Large proportion of psammoma bodies, less aggressive cytological features such as absent-moderate nuclear atypia, and rare mitotic figures will help in differentiating PPP from EOPPC. 10,11 Leiomyomatosis peritonealis dissiminata is a rare type of leiomyomatosis that usually affects young women of reproductive age who have a history of laparoscopic myomectomy. The present patient was a 60-year-old woman with no history of myomectomy with increased CA-125, hence diagnosis of LPD was excluded.…”

Extraovarian primary peritoneal carcinoma: staging with 18F-FDG PET/CT

“…Omental caking may occur with confluent and large masses. The Gynaecologic Oncology Group has established a set of diagnostic criteria for EOPPC to differentiate it from EOC: (a) both ovaries are normal in size (<4 cm in largest diameter) or enlarged by a benign process; (b) tumor involvement of extraovarian sites must be greater than the involvement on the surface of either ovary; or (c) the ovarian involvement is limited to the ovarian surface epithelium, either without stromal invasion or involving the cortical stroma with tumor size less than 5 9 5 mm; (d) histologic and cytologic characteristics of the tumor must be predominantly of the serous type or identical to any grade of ovarian papillary tumor [16]. Our case satisfied the diagnostic criteria with only surface involvement of the ovaries.…”

Extraovarian Primary Peritoneal Carcinoma: A Clinicopathological Gray Zone

“…EOPPC manifests in menopausal women with a median age range of 57 to 66 years, and occurs in 7-15% of all those cases, in which the presumptive diagnosis was ovarian cancer [1,2]. This case is presented for its rarity, as around 500 cases have been reported in the literature [3].…”

“…Extraovarian primary peritoneal carcinoma (EOPPC), an epithelial malignancy was first described by Swerdlow (1959) who documented its pelvic location and named it as "mesothelioma of the pelvic peritoneum" [1]. EOPPC manifests mostly in women, as pelvic tumor arising from abdominopelvic peritoneum and characterized by abdominal carcinomatosis, uninvolved or minimally involved ovaries and no identifiable primary and may be mistaken for ovarian or in rare cases, for an intestinal tumor [2].…”