Consider osteomyelitis, bone tumors, fracture fragments, or foreign bodies in the medullary cavity of the lower leg.
1. Osteomyelitis: the presence of bacterial infection in the bone marrow leads to osteomyelitis, acute osteomyelitis early bone destruction and lysis. If it becomes chronic, there will be a large amount of localized calcium deposition, dead bone, and high-density shadow in the marrow cavity.
2. Bone tumor: especially malignant tumor, causing local bone destruction. Due to local microcirculation or metabolic disorders, calcium aggregates abnormally, leading to osteosclerosis, local bone density increases, manifested as high density shadow.
3. Fracture fragments or foreign objects: after surgery after fracture, the bone fragments and foreign objects (including internal fixation) left behind by the unseen will cause high density shadow in the medullary cavity.
Small flaky high-density shadow in the medullary cavity of the lower leg may also be the possibility of ossification of the endosteum in the medullary cavity, it is recommended to consult a doctor for relevant examinations to clarify the cause of the disease and carry out treatment.