CH 28 - NEONATAL & PEDIATRIC PELVIS Flashcards
THE UTERUS, VAGINA, AND FALLOPIAN TUBES DEVELOP FROM ______ ____ ALSO KNOWN AS _______ _____.
PARAMESONEPHRIC DUCTS AKA MULLERIAN DUCTS
DURING THE DEVELOPMENT OF THE UTERUS WHAT ALSO DEVELOPS AT THE SAME TIME?
KIDNEYS
WHEN DO THE GONADS DIFFERENTIATE INTO EITHER THE TESTES OR OVARIES?
9TH WEEK
WHEN IS EXTERNAL GENITALS DEVELOPED BY?
12TH WEEK
THE ____ DUCTS FORM THE MALE REPRODUCTIVE SYS & THE ____ DUCTS FORM THE FEMALE REPRODUCTIVE SYS.
WOLFFIAN DUCTS (MESONEPHRIC) MULLERIAN DUCTS (PARAMESONEPHRIC)
THE MULLERIAN DUCTS FUSE TO THE MIDLINE TO FORM THE….
VAG, UT, AND FALLOPIAN TUBES
WHAT IS THE SONO APPEARANCE OF A NEWBORN UTERUS?
THICKENED, ECHOGENIC ENDOMETRIUM; 3.5CM LENGTH;
WHAT IS THE FUNDUS TO CERVIX RATIO OF A NEWBORN?
1:2
WHAT IS THE SONO APPEARANCE OF A UTERUS AT 2-3 MONTHS?
TUBULAR CONFIGURATION; 2.5 - 3 CM LENGTH
NO ENDOMETRIAL ECHOES
WHAT IS THE FUNDUS TO CERVIX RATIO AT 2 -3 MO’S?
1:1
WHAT IS THE UTERUS APPEARANCE AT PUBERTY?
INVERTED PEAR-SHAPE
5-7 LENGTH
ECHOGENICITY & THICKENED ENDOMETRIUM VARIES WITH CYCLE
WHAT IS THE FUNDUS TO CERVIX RATIO AT PUBERTY?
3:1
WHAT IS THE MEAN OVARIAN VOLUME AND HOW LONG IS THIS STABLE FOR?
.75 - .86 AND IS STABLE UP TO 5 YEARS
WHAT IS THE EQUATION USED TO DETERMINE THE OVARY VOLUME?
LENGTH X HEIGHT X WIDTH X .523
WHAT ARE SOME OF THE CAUSES FOR INFERTILITY & SPONTANEOUS ABORTION?
- DVLPMT PROBLEMS
- INTERFERENCE OF BLOOD SUPPLY
- DISTORTED UTERUS CAVITY
- ABNORMALTIES OF THE UTERUS IN .5% OF FEMALES = INCREASED RISK OF ABORTION & OB COMPLICATIONS
- HIGH RISK OF RENAL ABNORMALITIES ASSOCIATED WITH UTERINE ABNML
WHAT IS CLASS 1 OF THE MULLERIAN ANOMALIES?
SEGMENTAL MULLERIAN AGENISIS OR INCOMPLETE VAGINAL CANALIZATION. = VAGINAL ATRESIA
HOW IS VAGINAL ATRESIA DIAGNOSED?
DEVELOPMENT OF HYDROCOPOS (FLUID-FILLED VAG),
HYDROMETROCOLPOS (FLUID FILLED VAG & UT) OR
HEMATOMETROCOLPOS (BLOOD-FILLED VAG & UT)
THIS IS RELATED TO INFERTILITY AND PREGNANCY LOSS. IN SONO THE UT APPEARS CIGAR SHAPED AND DEVIATED ON 1 SIDE.
CLASS II - UNICORNUATE UTERUS
THIS IS A COMPLETE DUPLICATION OF THE UT, CX, AND VAG. NOT ASSOCIATED WITH FERTILITY PROBLEMS
CLASS III UTERUS DIDELPHYS
THIS IS A DUPLICATION OF THE UT WITH A COMMON CX.HAS A WIDE-SPACED CAVITIES & A LOW INFERTILITY RATE.
CLASS IV - BICORNUATE UT
WHAT IS THE BEST SCANNING PLANE TO ID BICORNUATE UT?
TRANSVERSE APPEARS “HEART SHAPED”
THIS IS A UTERUS WHICH 2 UTERINE CAVITIES ARE CLOSELY SPACED, WITH 1 FUNDUS AND SOMETIMES 2 CERVICAL CANALS. HAS THE HIGHEST INFERTILITY RATE.
CLASS V = SEPTATE UTERUS
THIS ANOMALY IS ASSOCIATED TO THE DRUG DES WHILE IN UTERO. THE UTERINE CAVITY HAS A “T” SHAPE.
CLASS VI = ARCUATE
THIS IS AN ERROR IN SEXUAL DVLPMT. MOST COMMONLY CAUSED BY ADRENAL HYPERPLASIA.
AMBIGUOUS GENITALIA