pattismith
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Yes! The redness starts with my fingertips and creeps upwards to my fingers and then palm. It's more visible in the fingers. It happens so quickly that I can watch it happen over the course of 10-30 seconds. My fingers and palm also take on a mottled appearance.
Yes. It just takes a few seconds.
Is this another sign of vascular autonomic neuropathy?
Possibly.
it looks like Erythromelalgia.
Erythomelalgia is a dilation of small arteries in the skin associated with redness and burning sensation.
https://www.msdmanuals.com/home/hea...s/peripheral-arterial-disease/erythromelalgia
An Erythromelalgia-like syndrome is known in Small Fiber Neuropathy, and Small Fiber Neuropathy is a cause of autonomic vascular disorders, so some erythromelalgia subtype could be linked to SFN. Do you have SFN Pat?
One test used for diagnosis is the color going from red to pale with elevation of the feet or hands:
https://en.wikipedia.org/wiki/Erythromelalgia#Diagnosis
Another test that can be done is to have the patient elevate their legs, and note the reversal (from red to pale) in skin color.