Raynaud's syndrome is a disorder in which there's vasospasm in the arteries of the hand, leading to pain and color changes in one digit or more due to the cessation of blood supply.
Types
- Primary. Appears by itself, without an underlying disease. Most common.
- Secondary. Appears as a collection of symptoms, as a part of a systemic disease (systemic sclerosis).
Pathomechanism and etiology
The proposed pathomechanism is adrenergic