OB Ultrasound Case ReviewRadiology Oral Boards 2004

Cases # 1 - 61

Question & Answer Style

Author: Residents 2004University of South Alabama

Department of Radiology

Last Revised (rev C): 05-MAY-04

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Case #1 – 6.5 wk embryo

Continued

Identify structures. By what point should they be seen?

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Case #1, cont.: Identify Structures

(2nd trimester)

Case #1, cont.: Identify Structures

Continued

Case #1, cont.: Assessment of AFI (subjective)

Continued

Case #1, cont.: what structures are show?

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Case #2 – Screening US

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Case #3

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Case #4

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Case #5

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Case #6

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Case #7 (12 wk fetus)

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Case #8

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Case #9: 4-chamber view

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Case #10

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Case #11a (Image 1/3)

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What associated lab test might help confirm your diagnosis?

Case #11b (Image 3/3 – Different Patient)

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Findings? How is this different from the previous case, if at all? What abnormal lab value might be expected?

Case #12

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Case #13

Continued

Case #14(12 wk fetus)

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Case #15

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Case #16(11 wks by LMP)

Continued

Case #17

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Case #18

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AFI = 37.5 cm

Case #19

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Right Adnexa, + b-HCG Representative image of Uterus

Case #20Multiple previous 2nd-trimester pregnancy losses

More Video

Case #20, cont. (different patient)

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Case #21Hx of Polyhydramnios

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Case #22

More Images

Case #23 (left adnexa)

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Click for Hx…Sexually active, 30 yo, Left Pelvic Pain; b-HCG negative

Case #24Hx - Multiple First-Trimester Miscarriages

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Case #33, cont. Additional Imaging.

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Skull in a different plane than shown initially.

Real-time US of extremeties.

Continued

Case #56 – OB US For DatesMother is bipolar w/ chronic lithium Rx

Findings?

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Attempt to identify chambers – Normal size?

Fetal Abdomen

Case #57 – Routine OB US

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Findings?

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One of the cardiac chambers shows virtually no contractility—

Which is it? What other abnormality is apparent? Etiology?

Case #61 – Screening OB US

Orientation: IUP, and images shown are from the fetal abdomen

Continued

Case #61, cont.

Findings? DDx?

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Case #61 – Answers

Fetal Gallstones

- Images showed calcification in the fetal mid-abdomen, which wereshown on real-time scanning to be in the fetal GB

- Fetal gallstones are a rare benign finding, and can spontaneouslyresolve

- Main DDx is from fetal liver calcifications, which are more concerningand require addional workup

- Meconium peritonitis might also cause calcifications

X Last Imagehttp://www.thefetus.net/page.php?id=233