Do you focus this is cancer? 16 years old-fashioned?

I have a lump in my upper left tummy, right under my rib. It's bigger than my fist and painless. The only other symptoms are frequent swollen lymph nodes and fatigue. I saw a doctor but she didn't tell me anything, newly is sending me for an ultrasound, CT scan and to a surgeon for a second opinion. I'm already in remission from a wilms tumor. Is it cancer again? I'm not looking for a diagnosis just your feelings.
Answers:    Definitely go see another doctor, its really important to get more later one opinion when it comes to your health.
Given your medical history, your Dr is gathering information in the past guessing a diagnosis.

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