11 February 2021
: Case report 
Antenatal Diagnosis of Retroperitoneal Cystic Mass: Fetiform Teratoma or Fetus in Fetu? A Case Report
Unknown etiology, Challenging differential diagnosis, Rare disease, Congenital defects / diseases, Clinical situation which can not be reproduced for ethical reasons, Rare coexistence of disease or pathology
Spencer Pace1BEF, Marla A. Sacks2BEF, Laura F. Goodman2EF, Edward P. Tagge2EF, Andrei Radulescu2ABEF*DOI: 10.12659/AJCR.929247
Am J Case Rep 2021; 22:e929247
Figure 4. Pathologic examination of right retroperitoneal mass, with hematoxylin eosin staining demonstrating malformed brain parenchyma (A) and striated cardiac musculature (B).