<s>[INST] Hi, can you have a small hematoma in your finger? It looks like a bunch of blood vessels together, and there s a bump but it doesn t hurt. It s blue- green in color. It almost looks like a vericose vein, but it s round, and it s in the inside of my finger. My Neurologist had no idea what it was? [/INST] hi,whether your bule bump is pulsatile in nature? painless?if yes, more likely it is haemangioma.haemangioma is incresed growth of blood vessels.final confirmation can be done by skinbiopsy and/ or by USG if the  bump is large enough. </s>