Korean J Obstet Gynecol.  2007 Apr;50(4):673-677.

Prenatal ultrasonographic diagnosis of Fetus in Fetu at 2nd trimester: A case report

Affiliations
  • 1Department of Obstetrics and Gynecology, College of Medicine, Ewha Womans University, Seoul, Korea. ewhapmh@ewha.ac.kr
  • 2Department of Pathology, College of Medicine, Ewha Womans University, Seoul, Korea.
  • 3Department of Pediatrics, College of Medicine, Ewha Womans University, Seoul, Korea.
  • 4Department of Surgery, College of Medicine, Ewha Womans University, Seoul, Korea.

Abstract

Fetus in fetu is an very rare condition in which a vertebrate fetus is incorporated within its twin. Although a number of cases were reported at 3rd trimester of gestation or postnatally, the authors present a retroperitoneal fetus in fetu with 9 x 7 x 6 cm sized cystic mass that was diagnosed at 2nd trimester using ultrasonography and confirmed on a computed tomography scan after birth. The mass was successfully excised postnatally and consistent with a fetus in fetu by pathological confirmation. Solid mass was surrounded by a fluid-containing sac and showed highly ordered organogenesis around an axial vertebral column.

Keyword

2nd trimester; Fetus in fetu; Ultrasonographic diagnosis

MeSH Terms

Diagnosis*
Fetus*
Humans
Organogenesis
Parturition
Pregnancy
Spine
Ultrasonography
Vertebrates
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