𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Ultrasound demonstration of the normal fetal yolk sac

✍ Scribed by Eric Sauerbrei; Peter L. Cooperberg; Betty J. Poland

Publisher
John Wiley and Sons
Year
1980
Tongue
English
Weight
353 KB
Volume
8
Category
Article
ISSN
0091-2751

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Using high‐resolution real‐time ultrasound in the first trimester of pregnancy, we have been able to demonstrate, in addition to the fetus, the yolk sac and the amniotic membrane. Pitfalls to avoid in first‐trimester pregnancies include (a) mistaking the yolk sac for a second separate fetus, (b) including the yolk sac in the crown–rump length, and (c) misinterpreting the amniotic membrane for a septum between two separate gestational sacs.

πŸ“œ SIMILAR VOLUMES

Ultrasound visualization of the human yo
Ultrasound visualization of the human yolk sac
✍ Margit Mantoni; Jan Fog Pedersen πŸ“‚ Article πŸ“… 1979 πŸ› John Wiley and Sons 🌐 English βš– 134 KB

## Abstract Ultrasound scanning in early pregnancy sometimes reveals a 2–5‐mm spheric structure lying adjacent to the fetus. The occurrence of this structure was studied in 60 consecutive ultrasound examinations. In the 7th to 9th weeks the sphere was seen in 19 of 22 examinations, and in the 10th

Transvaginal sonography of the yolk sac
Transvaginal sonography of the yolk sac in normal and abnormal pregnancy
✍ Stampone, C.; Nicotra, M.; Muttinelli, C.; Cosmi, E. V. πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 718 KB

A cross-sectional study comprising 117 consecutive first trimester singleton pregnancies was performed using transvaginal sonography (TVS) to evaluate size abnormalities of the secondary yolk sac (YS) vis-a-vis pregnancy outcome. In normal pregnancy outcome (NPO) the YS diameter showed an increase f

Presence of sucrase in the yolk sac of t
Presence of sucrase in the yolk sac of the chick
✍ Matsushita, Susumu πŸ“‚ Article πŸ“… 1986 πŸ› John Wiley and Sons 🌐 English βš– 722 KB

The presence of sucrase in the yolk sac of the chick was studied biochemically and immunologically. The sucrase was partially purified from the yolk sac of hatched chicks and was compared with the sucrase purified from the small intestine. Immunodiffusion with antiserum against intestinal sucrase an