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 A 70-year-old male has a pathologic fracture of femur. The lesion appears a lytic on X-rays film with a circumscribed punched out appearance. The curetting from fracture site is most likely to show which of the following and explain in detail?
History,pathologic fracture,  such as lytic lesion in x - ray and punched out lesion are suggestive of multiple myeloma. Even away from overt tumour masses, the marrow contains an increased number of plasma cells.These plasma cells may infiltrate the interstitium or be present in sheets that completely replace normal elements. On cuerreting this will be obtained.