Hi, Did you have any swelling of the Rt arm or forearm? If yes, then it could be Deep Vein Thrombosis(DVT) of the Rt upper limb which can happen in such diseases. The DVT then causes prominent superficial veins to develop over the shoulder and chest wall. Even if that is the case, there is no need to worry. In the past year the DVT would have cleared up and it would not cause any problems now. for the prominent veins no treatment is required. You can see your Doctor or GP and get a Color Doppler of the veins of the Right upper limb done to rule out any blockage due to thrombus. If that is clear you need not do anything. If there is some thrombus or changes of Chronic DVT then you can consider taking Tab Ecosprin for the next few years to decrease the chances of a recurrence later on. But, dont worry about the prominent veins, they will not harm you in any way. Take care, Dr Rishi, New Delhi, India.