<s>[INST] i am a cancer survivor, almost 4 years from Uterine Angiosarcoma .......past week or so i have been having pain and discomfort in my left side under rib cage and slightly to the front ...it is tender and sore to touch ...when i move i feel a slight discomfort ......i do not want to go to doctor unnecessarily but when i google symptoms it keeps pointing toward spleen ....with the angiosarcoma diagnosis is it probable that it is back? [/INST] Hi and thanks for the query,It is important for a probable spread of this tumor or metastasis to be excluded in this case. A chest X ray could be very important. Testing for serum alkaline phosphatase is important and a complete blood count.An abdominal ultrasound is very important to exclude any spread either to the spleen and the liver. A clinical evaluation is compelling also in this case.I suggest you consult your primary care physician for a proper clinical examination.Best regards,Bain LE, MD. </s>