You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Necrotic lung nodules on chest Xray are seen in and explain in detail?
Necrobiotic pulmonary nodules are sterile cavitating lung nodules associated with inflammatory bowel disease and rheumatoid ahritis Histologically, necrobiotic nodules consist of a core of fibrinoid necrosis and sterile aggregate of numerous epithelioid histiocytes arranged in indistinct nodules with an infiltrate of lymphocytes, plasma cells and multinucleated giant cells.(Ref: Chapman and Nakielny's Aids to Radiological Differential Diagnosis 6thEtd, page no.85)