URACHAL MASSES. Dr Saneej
بسم الله الرحمن الرحيم. Yolk Sac Origin: Primary yolk sac - Starts as vacuoles in the hypoblastic cells of the inner cell mass. - These vacuoles coalease.
بسم الله الرحمن الرحيم
Pediatric Umbilical Abnormalities Scott Nguyen MD Mount Sinai School of Medicine Dept of Surgery.
