The correct answer is: E. 585 nm; 3 mm spot size, 15 J/cm2 fluence, and 1.5 ms pulse duration.

A pulse dye laser (585 nm wavelength) is the gold standard for the treatment of cherry angiomas. A small spot size, high fluence, and short pulse duration are ideal for delivery of energy to a concentrated, superficial chromophore of oxygenated hemoglobin in a cherry angioma. The small spot size favors superficial lesions, and the high fluence and short pulse duration allow for delivery of high energy.

1064 nm; 4 mm spot size, 110 J/cm2 fluence, and 30 ms pulse duration are appropriate settings for a venous lake. 585 nm; 10 mm spot size, 10 J/cm2 fluence, and 20 ms pulse duration are appropriate settings for erythrotelangiectatic rosacea. 694 nm; 4 mm spot size, 3 J/cm2 fluence, and 20 ns pulse duration are appropriate settings for a blue/green tattoo. 1064 nm; 10 mm spot size, 10 J/cm2, and 60 ms pulse duration are appropriate settings for leg veins. 694 nm; 5 mm spot size, 10 J/cm2 fluence, and 40 ns pulse duration are appropriate settings for a solar lentigo.

References: Adamic M, Troilius A, Adatto M, Drosner M, Dahmane R. Vascular lasers and IPLS: Guidelines for care from the European Society for Laser Dermatology. J Cosmet Laser Ther 2007;9:113-24.