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CHORIONIC VILLI SAMPLING

GOMATHI.MI MSC

ZOOLOGY

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INTRODUCTION

Chorionic villus sampling (CVS) - chorionicvillus biopsy, is a prenatal diagnostic testperformed on pregnant women who are atrisk for carrying a fetus with a genetic or

chromosomal or genetic defect.

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Done at 1sttrimester

91! "ee#s

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CHORIONIC VILLI

!"

#

$

%

&

'mbilical cord

mnionChorionic plate

ntervillous space (maternal blood)

+asal plate

Cotyledon

Villus

Mi$ros$o%i$& 'n(er

)i#e %ro*e$tions t+atemer(e ,rom t+eo-ter sa$ "+i$+s-rro-ns t+e

e/e)o%in( 0a0.C+orioni$ /i))i are o,,eta) ori(in ane/ent-a)) ,orm t+e%)a$enta 2 %ro/ie,or e3$+an(e0et"een t+ematerna) an ,eta)$ir$-)ation.

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4M5RYOLOGY O6 CHORIONIC VILLI

A6T4R 64RTILISATION TH4 47TRA

4M5RYONIC M4M5RAN4S AR4 6ORM4D8RD44: ONARDS

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M4THODS

234S+56748 CVS234SC3VC8 CVS

nee)e is inserte t+ro-(+ t+ea0omen

a t-0e inserte t+ro-(+ t+e $er/i3

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CHOIC4 O6 T4ST5AS4D ON LOCATION O6 PLAC4NTA

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234S+56748 CVS

M4T4RIALS US4D