RT Book, Section A1 Kurklinsky, Andrew K. A2 Dean, Steven M. A2 Satiani, Bhagwan A2 Abraham, William T. SR Print(0) ID 1105292757 T1 PERNIO T2 Color Atlas and Synopsis of Vascular Diseases YR 2015 FD 2015 PB McGraw-Hill Medical PP New York, NY SN 9780071749541 LK accesssurgery.mhmedical.com/content.aspx?aid=1105292757 RD 2024/04/19 AB A 68-year-old woman from Idaho presented in February with complaints of burning, painful reddish-blue skin changes in four of her right and three of her left toes. These changes have recurred for the past 3 years appearing in the fall and resolving in the spring; specifically, skin changes are absent during the warmer seasons. Blistering and superficial ulcerations were described in the first year yet they were subsequently preventable by wearing well-insulated shoes and warm socks. She has no peripheral arterial disease (PAD) and underwent extensive workup, which was unrevealing. Her serologies were negative for rheumatic diseases, and the nail fold capillaries pattern was normal. She had marked improvement after a week of nifedipine treatment. A diagnosis of pernio was ultimately made.