Brains and faces in holoprosencephaly: pre- and postnatal description of 30 cases.
Ultrasound Obstet Gynecol
; 19(1): 24-38, 2002 Jan.
Article
en En
| MEDLINE
| ID: mdl-11851965
OBJECTIVE: To investigate the prenatal appearance of the holoprosencephaly spectrum. METHODS: A database of 1750 fetuses with congenital anomalies identified by ultrasound was prospectively collected from 1987 to 2000. Among them, 30 cases (1.7%) with holoprosencephaly were prenatally identified and described. RESULTS: The prevalence of holoprosencephaly in the Health Region of the National Center for Fetal Medicine in Norway was 1.26 : 10 000; the sex distribution (male : female) was 1.4 : 1. Holoprosencephaly was found in one dichorionic twin pregnancy and one pair of conjoined twins. Among the 30 cases of holoprosencephaly, 18 were alobar, five were semilobar, two were lobar, two were lobar variants, and three were anencephalic. The facial features varied considerably. Sixty-seven per cent (20/30) had associated structural anomalies that were not related to the cerebral and facial holoprosencephaly condition. Thirty-seven per cent (11/30) had detectable chromosome aberrations and 23% (7/30) had nonchromosomal syndromal origin. The size or shape of the head was abnormal in 83% (25/30) of holoprosencephaly cases. CONCLUSION: This study indicates that holoprosencephaly represents a heterogeneous entity with different etiologies and clinical appearances. The fact that holoprosencephaly features are found associated with particular conditions such as fronto-nasal dysplasia (2/30; 6.7%), agnathia-otocephaly (3/30; 10%), and anencephaly (3/30; 10%), suggests that these may be underreported conditions in other large holoprosencephaly series.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Holoprosencefalia
/
Ultrasonografía Prenatal
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Risk_factors_studies
Límite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
/
Pregnancy
País/Región como asunto:
Europa
Idioma:
En
Revista:
Ultrasound Obstet Gynecol
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
/
GINECOLOGIA
/
OBSTETRICIA
Año:
2002
Tipo del documento:
Article
País de afiliación:
Noruega
Pais de publicación:
Reino Unido