<prompt> All of the following are TRUE regarding erythrocyanosis frigida, EXCEPT:Seen exclusively in alcoholic malesOccurs in the lower third of leg on leg or ankleCauses Bazins ulcerSympathectomy may be beneficial in some patients  <response>: Erythrocyanosis frigid occurs exclusively in young females. Usually these people are obese with thick ankles and large amounts of subcutaneous fat. The etiology is believed to be ischemia of the area involved due to spasm of branches of posterior tibial and peroneal aeries. The vessels are abnormally sensitive hot and cold weather as in Raynauds disease. The non healing ulcers formed due to the ischemia are called Bazins ulcer. Ref: Manpal Millennium Edition, Page 52 