KTS is typically one sided and the discoloration does not go away with elevation. This sounds like the patient has Bilateral lower extremity 
"discoloration" just when standing? Am I correct in your explanation?
It there redness or blue discoloration? Did you do pressures and PPG on the toes? Still a lot of questions--does the patient's limb measure symmetrically, how is their gait and development? I measure the length of the feet also. 
L

-----Original Message-----
From: UVM Flownet [mailto:[log in to unmask]] On Behalf Of Connie McCoy
Sent: Tuesday, July 27, 2010 8:01 AM
To: [log in to unmask]
Subject: 6 mo old

Dear FlowNetters,
Your opinions/comments are appreciated regarding a 6 mo old female with discoloration of BLE in the upright position.  The pt apparently had a BLE arterial duplex scan.  My initial thought was May Thurner Syndrome or some ileo/caval abnormality.
Here are the findings by a radiologist:
FINDINGS:
Flow was documented within all of the interrogated vascular structures.  No intraluminal thrombus is identified throughout.  Complete coaptation occurred with graded compression of the venous structures of the lower extremities.  Doppler waveforms are normal throughout with the exception of lack of normal diastolic flow within the right iliac, femoral, and popliteal arteries throughout the
exam, and intermittent lack of diastolic flow within these vessels on the left. The size of the vessels appears normal with the exception of the left iliac artery which appears relatively diminutive.
Connie McCoy, RVT

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