A 61mmx64mm soft tissue mass shadow in the right lung may be pneumonia, pulmonary fibroma, or lung cancer and other diseases. 1. Pneumonia: lung tissue stimulated by inflammation may have inflammatory exudate fluid, and the presence of soft tissue mass shadow will be found through examination. 2. Pulmonary fibroma: It is mainly composed of irregular fibroblasts, which are related to the neighboring blood vessels and bronchial tubes that are not connected. Through examination, it will usually be found that there is a dense shadow with neat edges. 3. Lung cancer: when the cancer cells gradually increase, a soft tissue mass shadow may be formed, which will be found as an S-shaped reflection by imaging. Tissue mass shadow in the right lung may also be caused by tuberculosis, benign tumor and other diseases, which need to be analyzed according to pathological biopsy at present, and it is recommended to seek medical treatment in time if there is any special condition.