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 3. Intraoperative findings of right retroperitoneal mass with adjacent well-formed yet discontinuous and vermiform bowel segments. External surface of resected mass (A), and cross-sections of the mass revealing a unilocular cyst with multiple sessile masses and irregular cartilaginous and cystic lesions filled with mucoid material (B, C).