Conjoined Twins (conjoined + twin)

Distribution by Scientific Domains


Selected Abstracts


Sanctity of life , are some lives more sacred than others?

LEGAL STUDIES, Issue 3 2002
Sabine Michalowski
Court decisions concerning the life and death of patients become more and more frequent in the context of medical practice. One of the most controversial decisions in this area in recent years has been the decision of the Court of Appeal in Re A (Conjoined Twins: Medical Treatment),, authorising the separation of conjoined twins. This paper will argue that the decision was flawed both on legal and moral grounds and that its potential implications for future cases are more far-reaching than the judgment itself suggests. [source]


Ethics: English High Court Orders Separation of Conjoined Twins

THE JOURNAL OF LAW, MEDICINE & ETHICS, Issue 3 2000
Jacob M. Appel
First page of article [source]


Incidence of conjoined twins in tilapia after thermal shock induction of polyploidy

AQUACULTURE RESEARCH, Issue 5 2000
M Owusu-Frimpong
Conjoined twins (polyembryonic fish) were observed in batches of blue tilapia Oreochromis aureus (Steindachner) and Nile tilapia O. niloticus (L.) embryos incubated at 28 °C. Heat shock (41.8 °C) treatment of fertilized eggs for 3,4 min applied between 4 min and 27 min after fertilization increased the twinning rate by three or four times over that of unshocked eggs. Two basic morphological variations , ventrally or laterally conjoined twins , were observed. Twins did not survive beyond 21 days after hatching. The proportion of twins in heat-shocked egg batches of both species combined ranged from 0.32% to 0.40%. [source]


Micro-focus X-ray computed tomography images of the 3D structure of the cranium of a fetus with asymmetric double malformation

CONGENITAL ANOMALIES, Issue 1 2006
Takashi Shibata
ABSTRACT,, Reconstructed micro computed tomography (Micro-CT, µ-CT) images have revealed the detailed three-dimensional structure of the cranium of human fetal congenital anomalies for the first time. The objects were a head and a cervix of female autosite and a parasite consisting of only a head conjoined to the scapular region of the autosite of an asymmetric double malformation (asymmetric conjoined twins, heteropagus twinning) at a gestational age of 8 months. The cranium of the autosite was normal, but that of the parasite was characterized by otocephaly (agnathia, synotia, and monorhina) and almost all the cranial bones were of an abnormal shape. It is suggested that a part of occipital bone (the basioccipital and exoccipital bones), the vomer and cribriform plate were absent and this resulted in the fusion and overlapping of bilateral temporal and craniofacial bones that should have been adjacent to them. This resulted in a reformation and relocation of most of the cranial bones. Micro-CT is a useful tool to visualize the detailed bone structure which has not been clarified by the conventional dissection methods and other imaging technologies and is a powerful instrument for studying congenital anomalies. [source]


Two-dimensional and three-dimensional sonography of conjoined twins

JOURNAL OF CLINICAL ULTRASOUND, Issue 2 2002
Fernando Bonilla-Musoles MD
Abstract Purpose The aim of this study was to evaluate and compare the diagnostic capabilities of 2-dimensional (2D) and 3-dimensional (3D) sonography for the study of conjoined twins. Methods Four pregnant women with an initial 2D sonographic diagnosis of conjoined twins were examined with color Doppler sonography, 3D multiplanar sonography, and orthogonal plane imaging and 3D surface rendering. Results All 4 cases of conjoined twins were initially diagnosed with either transvaginal or transabdominal 2D sonography. 3D sonography afforded more realistic views and demonstrated more clearly the linking areas and surface anomalies, but 2D and color Doppler sonography provided more definitive and specific information about shared organs. Conclusions Although 2D sonography is the primary modality for diagnosing and evaluating conjoined twins, color Doppler and 3D sonography can sometimes provide additional information that assists in the clinical management of these twins. 3D sonography also provides images that are easier for parents to understand, which can help them with decision making. © 2002 John Wiley & Sons, Inc. J Clin Ultrasound 30:68,75, 2002; DOI 10.1002/jcu.10035 [source]


Sanctity of life , are some lives more sacred than others?

LEGAL STUDIES, Issue 3 2002
Sabine Michalowski
Court decisions concerning the life and death of patients become more and more frequent in the context of medical practice. One of the most controversial decisions in this area in recent years has been the decision of the Court of Appeal in Re A (Conjoined Twins: Medical Treatment),, authorising the separation of conjoined twins. This paper will argue that the decision was flawed both on legal and moral grounds and that its potential implications for future cases are more far-reaching than the judgment itself suggests. [source]


Deradelphous Cephalothoracopagus in Kittens

ANATOMIA, HISTOLOGIA, EMBRYOLOGIA, Issue 5 2009
G. Mazzullo
Summary Cephalothoracopagus is a very rare form of conjoined twins and is characterized by fusion of heads and thoraxes with two separate spines, limbs and pelves. The aim of this study was to describe a case of female cephalothoracopagus kitten puppy. The most important gross findings involved the external body and some of the internal organs. Radiological features revealed main developmental abnormality of the head, spines and thorax. Authors discuss the pathogenic mechanisms of this condition, infrequently reported in veterinary practice, pointing out the importance of embryonic duplications commonly associated with dystocia. [source]


Incidence of conjoined twins in tilapia after thermal shock induction of polyploidy

AQUACULTURE RESEARCH, Issue 5 2000
M Owusu-Frimpong
Conjoined twins (polyembryonic fish) were observed in batches of blue tilapia Oreochromis aureus (Steindachner) and Nile tilapia O. niloticus (L.) embryos incubated at 28 °C. Heat shock (41.8 °C) treatment of fertilized eggs for 3,4 min applied between 4 min and 27 min after fertilization increased the twinning rate by three or four times over that of unshocked eggs. Two basic morphological variations , ventrally or laterally conjoined twins , were observed. Twins did not survive beyond 21 days after hatching. The proportion of twins in heat-shocked egg batches of both species combined ranged from 0.32% to 0.40%. [source]