title: Echogenicity of the foetal telencephalic choroid plexus as a developmental landmark: a preliminary report.
abstract: Echogenicity of the telencephalic choroid plexus was observed in 34% of foetuses examined consecutively in routine obstetrical sonograms. Foetuses with echogenic were all aged between 13 and 23 weeks. 70% of the foetuses showing the echogenic plexus were in the second trimester. 80% of these foetuses were scanned during the fifth month of pregnancy (aged between 15 and 19 weeks). The biparietal diameter of 87% of the skulls with echogenic plexus ranged between 22 and 50mm. The characteristic appearance of the normal plexus during a certain period in the second trimester confirms its transient nature and suggests an underlying developmental mechanism. It appears and disappears well before the disease entities presenting in similar cephalic echogenicities.
authors.affiliation: College of Medicine, Sultan Qaboos University, Muscat, Sultanate of Oman.
authors.forename: Q M
authors.initials: QM
authors.lastname: Ali
authors.forename: K T
authors.initials: KT
authors.lastname: al-Shafei
mesh_terms: D000328:Adult; D002508:Cephalometry; D002831:Choroid Plexus / Q000000981:diagnostic imaging* / Q000196:embryology*; D005314:Embryonic and Fetal Development; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D013687:Telencephalon / Q000098:blood supply / Q000000981:diagnostic imaging* / Q000196:embryology*; D016216:Ultrasonography, Prenatal