1. Primary Peritoneal Carcinosarcoma With Metastasis to the Umbilicus and Pancreas
   Shohei Tanabe et al, 2022, Cureus CrossRef
2. A Case of Significant Response to Olaparib in a Patient with Primary Peritoneal Carcinosarcoma Diagnosed by Laparoscopic Surgery
   Satoshi Nagamata et al, 2020, Case Reports in Obstetrics and Gynecology CrossRef