Conversation: The conversation between human and AI assistant.
[|Human|] My son has an almond shape immovable lump on side  of sternum. I am so worried (getting crazy) since as a 8 months old he was diagnosed with bilateral Willms. He is alright, but all previous treatments posibly could cause another type of cancer. I am taking him to doctor this afternoon but right now I found your website and want from you something for reassurance. Thank you so much.
[|AI|]  Hi! As per your description and the History of Films tumor of your son, there is high possibility that the immovable lump is kind of inclusion cyst, keloid or some abscess but in worse case it could also be metastatic Films tumor or some metaplastic tumor due to therapy-related effects! A simple needle biopsy takes just 5 minutes, and it confirms the diagnosis. Therefore, please see your doctor and write to us with feedback. Regards and all the best!