US OB Review (#1 - 61)
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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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Acknowledgements- It would be impossible to create a file as extensive as this one
without the incorporation of the work of numerous other entities andindividuals. Much of this material (mainly, images) is copyrighted,and the copyright remains the property of the respective holder(s).
- When appropriate (e.g., for an image taken from a textbook), anattempt has been made to give a reference to the source of theinformation, so proper credit can be given
- However, many of the images herein have been copied from Websites and other multimedia materials, such that it is not practical togive specific credit to every source.
In any case, this file has been created by residents, at an educationalinstitution, for the sole purpose of furthering medical education. As such, the used of the copyrighted material herein is believed to fall within the domain of educational “Fair Use”. Any other use, including the selling of this file (or contents) for profit, is strictly prohibited by law.
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Case #1 – 6.5 wk embryo
Continued
Identify structures. By what point should they be seen?
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Continued
Case #1, cont.: Identify Structures
(2nd trimester)
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Case #1, cont.: Identify Structures
Continued
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Case #1, cont.: Assessment of AFI (subjective)
Continued
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Case #1, cont.: what structures are show?
X Last Image
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Case #2 – Screening US
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Case #3
X Last Image
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Case #4
Continued
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Case #5
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Case #6
X Last Image
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Case #7 (12 wk fetus)
Continued
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Case #8
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Case #9: 4-chamber view
X Last Image
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Case #10
X Last Image
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Case #11a (Image 1/3)
Continued
What associated lab test might help confirm your diagnosis?
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Case #11b (Image 3/3 – Different Patient)
X Last Image
Findings? How is this different from the previous case, if at all? What abnormal lab value might be expected?
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Case #12
X Last Image
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Case #13
Continued
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Case #14(12 wk fetus)
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Case #15
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Case #16(11 wks by LMP)
Continued
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Case #17
X Last Image
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Case #18
X Last Image
AFI = 37.5 cm
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Case #19
X Last Images
Right Adnexa, + b-HCG Representative image of Uterus
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Case #20Multiple previous 2nd-trimester pregnancy losses
More Video
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Case #20, cont. (different patient)
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Case #21Hx of Polyhydramnios
X Last Images
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Case #22
More Images
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Case #23 (left adnexa)
X Last Image
Click for Hx…Sexually active, 30 yo, Left Pelvic Pain; b-HCG negative
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Case #24Hx - Multiple First-Trimester Miscarriages
X Last Image
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Case #33, cont. Additional Imaging.
X Last Image
Skull in a different plane than shown initially.
Real-time US of extremeties.
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Continued
Case #56 – OB US For DatesMother is bipolar w/ chronic lithium Rx
Findings?
(click for more…)
Attempt to identify chambers – Normal size?
Fetal Abdomen
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Case #57 – Routine OB US
X Last Image
Findings?
(click for hint…)
One of the cardiac chambers shows virtually no contractility—
Which is it? What other abnormality is apparent? Etiology?
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Case #61 – Screening OB US
Orientation: IUP, and images shown are from the fetal abdomen
Continued
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Case #61, cont.
Findings? DDx?
X Last Image
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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
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