Cargando…

A case report of fetus in fetu with an aorta-like structure visualized by contrast-enhanced CT

Fetus in fetu (FIF) is a rare congenital anomaly resulting from abnormal embyogenesis in monochorionic diamniotic twins and appears as a cystic mass containing fetus-like structures mainly in the retroperitoneum of infants. Although there is a theory that FIF is a highly differentiated teratoma, it...

Descripción completa

Detalles Bibliográficos
Autores principales: Matsubara, Naoko, Akasaka, Yoshinobu, Kanagaki, Mitsunori, Okamoto, Shinya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567927/
https://www.ncbi.nlm.nih.gov/pubmed/33088380
http://dx.doi.org/10.1016/j.radcr.2020.10.006
_version_ 1783596426854400000
author Matsubara, Naoko
Akasaka, Yoshinobu
Kanagaki, Mitsunori
Okamoto, Shinya
author_facet Matsubara, Naoko
Akasaka, Yoshinobu
Kanagaki, Mitsunori
Okamoto, Shinya
author_sort Matsubara, Naoko
collection PubMed
description Fetus in fetu (FIF) is a rare congenital anomaly resulting from abnormal embyogenesis in monochorionic diamniotic twins and appears as a cystic mass containing fetus-like structures mainly in the retroperitoneum of infants. Although there is a theory that FIF is a highly differentiated teratoma, it is commonly distinguished from teratoma as a mass containing a vertebral axis with appropriate arrangement of limbs or other organs around this axis. Here we present a case of FIF with aorta-like structure visualized by contrast-enhanced computed tomography. A 5-day-old girl was pointed out a cystic mass in the abdomen by ultrasound examination. Abdominal contrast-enhanced computed tomography revealed a retroperitoneal cystic mass with spine- and limb-like bone structures and blood vessel-like elongated structures and it was confirmed as FIF by surgery. The presence of major vascular structures along the skeletal axis is clearly different from teratoma and suggests that it occurred as an embryo and underwent some stage of development. Our findings strongly support the monozygotic twin theory.
format Online
Article
Text
id pubmed-7567927
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-75679272020-10-20 A case report of fetus in fetu with an aorta-like structure visualized by contrast-enhanced CT Matsubara, Naoko Akasaka, Yoshinobu Kanagaki, Mitsunori Okamoto, Shinya Radiol Case Rep Case Report Fetus in fetu (FIF) is a rare congenital anomaly resulting from abnormal embyogenesis in monochorionic diamniotic twins and appears as a cystic mass containing fetus-like structures mainly in the retroperitoneum of infants. Although there is a theory that FIF is a highly differentiated teratoma, it is commonly distinguished from teratoma as a mass containing a vertebral axis with appropriate arrangement of limbs or other organs around this axis. Here we present a case of FIF with aorta-like structure visualized by contrast-enhanced computed tomography. A 5-day-old girl was pointed out a cystic mass in the abdomen by ultrasound examination. Abdominal contrast-enhanced computed tomography revealed a retroperitoneal cystic mass with spine- and limb-like bone structures and blood vessel-like elongated structures and it was confirmed as FIF by surgery. The presence of major vascular structures along the skeletal axis is clearly different from teratoma and suggests that it occurred as an embryo and underwent some stage of development. Our findings strongly support the monozygotic twin theory. Elsevier 2020-10-13 /pmc/articles/PMC7567927/ /pubmed/33088380 http://dx.doi.org/10.1016/j.radcr.2020.10.006 Text en © 2020 The Authors. Published by Elsevier Inc. on behalf of University of Washington. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Case Report
Matsubara, Naoko
Akasaka, Yoshinobu
Kanagaki, Mitsunori
Okamoto, Shinya
A case report of fetus in fetu with an aorta-like structure visualized by contrast-enhanced CT
title A case report of fetus in fetu with an aorta-like structure visualized by contrast-enhanced CT
title_full A case report of fetus in fetu with an aorta-like structure visualized by contrast-enhanced CT
title_fullStr A case report of fetus in fetu with an aorta-like structure visualized by contrast-enhanced CT
title_full_unstemmed A case report of fetus in fetu with an aorta-like structure visualized by contrast-enhanced CT
title_short A case report of fetus in fetu with an aorta-like structure visualized by contrast-enhanced CT
title_sort case report of fetus in fetu with an aorta-like structure visualized by contrast-enhanced ct
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567927/
https://www.ncbi.nlm.nih.gov/pubmed/33088380
http://dx.doi.org/10.1016/j.radcr.2020.10.006
work_keys_str_mv AT matsubaranaoko acasereportoffetusinfetuwithanaortalikestructurevisualizedbycontrastenhancedct
AT akasakayoshinobu acasereportoffetusinfetuwithanaortalikestructurevisualizedbycontrastenhancedct
AT kanagakimitsunori acasereportoffetusinfetuwithanaortalikestructurevisualizedbycontrastenhancedct
AT okamotoshinya acasereportoffetusinfetuwithanaortalikestructurevisualizedbycontrastenhancedct
AT matsubaranaoko casereportoffetusinfetuwithanaortalikestructurevisualizedbycontrastenhancedct
AT akasakayoshinobu casereportoffetusinfetuwithanaortalikestructurevisualizedbycontrastenhancedct
AT kanagakimitsunori casereportoffetusinfetuwithanaortalikestructurevisualizedbycontrastenhancedct
AT okamotoshinya casereportoffetusinfetuwithanaortalikestructurevisualizedbycontrastenhancedct