This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumours of skin, Subject name: Dental
Which laser is the treatment of choice for superficial cutaneous hemangiomas? 
Select and explain. 
A. ND-YAG laser, B. CO2 laser, C. Pulsed Dye laser (PDL), D. Argon laser
C: Pulsed Dye laser (PDL)
Answer: C: Pulsed Dye laser (PDL) 
Explanation: Vascular specific pulsed dye laser (flash lamp-pumped)- TOC for superficial cutaneous hemangiomas at sites of potential functional impairment and on face. Yellow laser light is absorbed by Oxyhemoglobin. Sho pulses are used so that only targeted vessels are heated without affecting surrounding tissue. Hemangiomas with deep component do not respond because the effect of the pulsed dye laser (PDL) is limited by its depth of vascular injury.