Conversation: The conversation between human and AI assistant.
[|Human|] My brother has been treated for sarcoidosis for 18 mos and it is not being helped by steroids. He recently went on methyltrexate. He has 3 lymph nodes in his chest that have tripled in size recently.. He is going to have an EGD W/BIOPSY. Would they be checking for lymphoma?
[|AI|]  Thanks for your question on Chat Doctor. In my opinion following are the possibilities in your brothers case.1. Tuberculosis2. Malignant Hilary lymphnode3. Lymphoma4. Fungal infection like toxoplasma. Etc. Since he is not improving with steroids, possibility of above-mentioned causes is high. To rule out all this tissue material is needed. And for this bronchoscopic ultrasound guided biopsy is needed. It is done through BUS (Endobronchial Ultrasound). In this FNAC is taken under vision. So yield from the sample is high. So they are doing this to rule out other above-mentioned possibilities including lymphoma.