Angioma serpiginosum typically presents as a small geometric arrangement of red puncta on a macular red to violaceous background, although limited case reports describe more extensive involvement. We describe 2 women with extensive retiform and confluent erythematous patches on the trunk and extremities (Figure 1A [patient 1] and Figure 1B [patient 2]). Of note, both patients stated that the appearance of their lesions worsened with increased cold and improved with warmth exposure.
Marks V, Tcheung WJ, Burton C, Selim A, Nelson K. Reflectance Confocal Microscopy Features of Angioma Serpiginosum. Arch Dermatol. 2011;147(7):878. doi:10.1001/archdermatol.2011.125