<s>[INST] Dear  dOCTOR, My  son  CT  CHEST  SCAN  REPORT  INDICATES  THE  FOLLOWING. Enlarged non-necrotic mediastinal lymphnodes(with probable acquired diverticular communication with adjacent  esophagus in the subcarinal lymphnodes) Multiple lytic lesions with adjacent  soft tissue involving the  ribs & the vertebrae. Needs  further  evaluation  with biopsy. Kindly  advice  me  on  corrective  medical  procedures  to  diagnose   the  above. [/INST] HelloAccording to the chest CT report in this situation a lymphnodes biopsy should be done for the correct diagnoses.RegardsDr.Jolanda </s>