Patient's question:
What does increased bone density in the femoral head mean? When lying flat, if the left leg is tucked in and swung side to side more, pain occurs in the upper thigh.Doctor's answer:
Increased bone density is observed in the following conditions:(1) Osteosclerotic hyperplasia: Osteosclerotic hyperplasia is the result of increased bone mass. It is a compensatory response of the body and can be seen in many diseases. Localized osteosclerotic hyperplasia is seen in chronic inflammation and malignant bone tumors, among others. Generalized osteosclerosis is observed in conditions such as osteopetrosis, renal osteosclerosis, and skeletal fluorosis. X-ray findings include increased bone density, thickened cortex, widened diaphysis, narrowed or marrow cavity, and disappearance of trabeculae, resulting in a dense image. The tumor bone seen in osteosarcoma, although it shows bone hyperplasia and sclerosis, is not a compensatory response of the body but rather a part of the tumor tissue.
Clinical advice:
(2) Bone compression: Bone compression increases bone mass per unit volume, thereby raising bone density. Bone compression is most commonly seen in vertebral compression fractures. It is also observed in osteonecrosis, where the increased density appears heterogeneous.
(3) Intraosseous calcification: Lesions within the bone, such as tumors or inflammatory tissue, can cause intraosseous calcification. Bone marrow lesions and ischemic diseases can also lead to this, appearing as high-density, non-structured granular images.