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OBGYN > Fetal Chest > Flashcards

Fetal Chest Flashcards

1
Q

Functional lung tissue does not exist until after _____

A

25 weeks

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2
Q

Fetal lung maturity can be assessed using:

A

Lecithin to sphingomyelin ratio (L/S ratio)

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3
Q

The most common lesion causing pulmonary hypoplasia is ______

A

Diaphragmatic hernia

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4
Q
  • bilateral renal agenesis
  • abnormal face
  • pulmonary hypoplasia
  • limb abnormalities
A

Potter syndrome

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5
Q

Pulmonary hypoplasia is a common finding with (polyhydramnios or oligohydramnios)

A

Oligohydramnios

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6
Q

What sign is this? And what is it associated with?

A

Bat wing sign

Pleural effusion

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7
Q

A mass consisting of abnormal bronchial and lung tissue.

A

Congenital Cystic Adenomatoid Malformation (CCAM/CAM)

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8
Q

How many types of CCAM are there?

A

3

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9
Q

Type 1 CCAM appears

A

Macrocystic

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10
Q

Type 2 CCAM appears

A

Microcystic

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11
Q

Type 3 CCAM appears

A

Echogenic

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12
Q

Separate mass of nonfunctioning lung tissue with its own blood supply

A

Pulmonary sequestration

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13
Q

Pulmonary sequestration aka

A

Bronchopulmonary sequestration

Extrapulmonary sequestration

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14
Q

Most common appearance of pulmonary sequestration

A

Echogenic triangle

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15
Q

Pulmonary sequestration is most often on the ____ side

A

Left side

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16
Q

Most common reason for cardiac malposition

A

Diaphragmatic hernia

17
Q

Most common location of diaphragmatic hernia

A

Left side

18
Q

Bochdalek hernia is located:

A

Left posterior lateral diaphragm

19
Q

Foramen of Morgagni is located:

A

Right anterior medial diaphragm

20
Q

Lack of muscle in the dome of the diaphragm

A

Eventration of the diaphragm

21
Q

Differential diagnosis for diaphragmatic hernia

A

Eventration of the diaphragm

22
Q

Genetic disorder characterized by an absent or hypoplastic thymus

A

DiGeorge syndrome

23
Q

Most common fetal chest mass

A

CCAM

OBGYN (22 decks)

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