PMC5836220_01
Case 1.
cde-0010-0017-g01.jpg
PMC5836220_01_cde-0010-0017-g01.jpg
F1
The skin on the nose initially turned pale, followed by desquamation and ulceration that failed to heal (Fig. 1).
PMC5836220_02
Case 2.
cde-0010-0017-g02.jpg
PMC5836220_02_cde-0010-0017-g02.jpg
F2
Over time, the lesion developed into a scaly erythematous patch with irregular borders (Fig. 2).
PMC5836220_03
Case 3.
cde-0010-0017-g03.jpg
PMC5836220_03_cde-0010-0017-g03.jpg
F3
The lesion failed to heal, and after approximately 1 year, multiple scattered crusted plaques developed on the forehead at the site of previous cold injury (Fig. 3).