This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Pulsatile varicose veins in lower limbs is seen in – 
Select and explain. 
A. Klippel trenaunay syndrome, B. TR, C. RV failure, D. Carcinoid stenosis of tricuspid
A: Klippel trenaunay syndrome
Answer: A: Klippel trenaunay syndrome 
Explanation: Klippel - Trenaunay syndrome (KT syndrome) 

The triad of KT syndrome is:-


Cutaneous vascular malformation —> Most commonly capillary malformation.
Bony capillary malformation and soft tissue hypertrophy.
Venous abnormalities —> Deep venous system may be absent or hypoplastic.


The anomaly present at birth and usually involves lower limb.
When there is associated Arterio - venous malformation, it is known as Klippel - Trenaunay - Weber syndrome.
Thick walled venous varicocities typically become apparent ipsilateral to the vascular malformation —> May be pulsatile because ofAV malformation.