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What is Your Diagnosis? True Knot of the Umbilical Cord

What is Your Diagnosis? True Knot of the Umbilical Cord

This is the case of a 30-week pregnancy for which the mother underwent routine sonography.

History and Symptoms: This young mother came for routine ultrasound examination at 30 weeks gestational age with a history of normal menstrual cycles before the pregnancy. She had a history of acute rhinitis prior to this sonography. This was her first pregnancy.

Family History: The patient (the mother) was one of 4 children.

Present Pregnancy: The patient had a history of 30 weeks amenorrhea which corresponded with the age of the fetus on ultrasound scan. She had a history of mild vaginal spotting during the first month of this pregnancy.

Clinical Examination: Her blood pressure was normal (BP: 122/ 84 mm. of Hg); her other vital signs were normal. On examination of the chest there were no abnormalities. On abdominal examination, there were no major clinical findings. The fundal height of the patient corresponded to the age of the fetus (30 weeks).

Imaging Studies: This patient underwent routine transabdominal ultrasound imaging to study the biophysical profile of the fetus and also to rule out any fetal anomalies. She had not undergone sonography prior to this scan.

Image 1: Transabdominal color Doppler scan image
(Images courtesy of Dr. Gidda Ramaiah, MD, India).

Image 2: Transabdominal color Doppler scan image
(Images courtesy of Dr. Gidda Ramaiah, MD, India).

What are your findings based on these obstetric ultrasound images?

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