- National Society of Histotechnology
- Workshop #49: The Placenta: To Know Me Is To
Love Me
- September 18th, 2000
- Milwaukee, Wisconsin
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- 1. At term, the placenta
usually weighs and measures:
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- a. 400 grams, 18 x 18 x 3
cm
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- b. 470 GRAMS, 20 x 20 x 2
CM (Schuler-Maloney, pg. 61)
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- c. 550 grams, 24 x 20 x
1.4 cm
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- d. 350 grams, 20 x 14 x 2
cm
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- 2. "Battledore"
placenta refers to a:
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- a. right twisted umbilical cord
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- b. velamentously inserted umbilical cord
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- c. MARGINALLY INSERTED UMBILICAL CORD
(Schuler-Maloney, pg. 61)
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- d. a cord that has been torn off the fetal surface
during manual placental removal
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- 3. Match the following:
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- a. Decidua vera: 4 - decidua in late
pregnancy lining uterus and overlying membranes
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- b. Decidua capsularis: 2 - decidua
attached to the membranes
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- c. Decidua parietalis: 3 - decidua
lining the uterus
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- d. Decidua basalis: 1 - decidua
underlying the placenta (Schuler-Maloney, pg. 70)
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- 4. The placenta may be green due to:
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- a. prenatal meconium discharge
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- b. hemosiderin pigment associated with old hemorrhage
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- c. severe ascending infections
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- d. ALL OF THE ABOVE (Schuler-Maloney, pg. 40)
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- 5. There are twice as many veins as arteries
on the fetal surface of the placenta.
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- True or FALSE (Schuler-Maloney,
pg. 72)
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- 6. Right twisted umbilical cords out number
left twisted umbilical cords because more people are right handed.
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- True or FALSE (Schuler-Maloney, pg. 62)
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- 7. Under which circumstances is the Wharton's
jelly more likely to be shrunken, contracted (lesser diameter umbilical cord)? (circle all
that apply)
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- a. with preterm delivery
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- b. AT TERM (Schuler-Maloney, pg. 61)
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- c. POSTDATES
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- d. in association with polyhydramnios
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- e. IN ASSOCIATION WITH OLIGOHYDRAMNIOS
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- 8. Single umbilical artery (SUA/two vessel
umbilical cord), is most often associated with which of the following congenital
anomalies?
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- a. tracheo-esophageal fistula
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- b. sirenomelia
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- c. renal dysplasia or agenesis
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- d. OVER 100 MALFORMATIONS ARE ASSOCIATED WITH
SUA AND NO ONE ANOMALY PREDOMINATES (Schuler-Maloney, pg. 66)
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- 9. Candida/yeast infection is easily
identified on the umbilical cord.
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- TRUE or False (Schuler-Maloney,
pg. 65)
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- 10. Which of the following is true?
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- a. meconium may be discharged in response to fetal
distress
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- b. meconium may not be discharged in response to fetal
distress
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- c. meconium is thought to be a contributing cause to
the development of cerebral palsy
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- d. ALL OF THE ABOVE (Schuler-Maloney, pp.
158-159)
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- 11. Which of the following is not true of
abruptio placentae?
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- a. THE PLACENTAL PARENCHYMA IS TORN AND
FRAGMENTED AT THE SITE OF ABRUPTION (Schuler-Maloney, pp. 3, 81)
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- b. the placental maternal surface may show nothing
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- c. the placental maternal surface may show adherent
rubbery red to stringy brown blood clot
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- d. is often due to damaged endometrial spiral artery
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- e. the placental parenchyma overlying the abruption
often infarcts
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- 12. Placental tissue requires 24 hours of
fixation before tissue processing, because artifacts produced by poor fixation are a major
reason pathologists may experience difficulty interpreting some microscopic findings.
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- TRUE or False
(Schuler-Maloney, pg. 53)
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- 13. Which of the following are types of
placenta extrachorialis? (circle all that apply)
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- a. Subchorial closing ring
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- b. CIRCUMMARGINATE (Schuler-Maloney, pp.
58-59)
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- c. CIRCUMVALLATE
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- d. Succenturiate
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- e. All of the above
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- 14. Which of the following is not a
variation of normal seen on the term placenta?
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- a. Squamous metaplasia on the fetal surface
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- b. Right twisted umbilical cord
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- c. Microcalcifications on the maternal surface
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- d. Intervillous thrombi in the parenchyma
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- e. LARGER THAN 3 CM INFARCT IN THE CENTRAL
PARENCHYMA (Schuler-Maloney, pg. 9)
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- 15. The placenta is not a messy specimen to
examine.
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- True or FALSE
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- References
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- Schuler-Maloney D, Lee S: The Placenta: To Know Me
Is To Love Me. A reference guide for gross placental examination, published 1998 by
DSM PathWorks, Inc., St. Mary's, IA.
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