Which diseases should skull osteoma be differentiated from?

Skull osteoma is a common benign tumor, which mainly manifests as a round or cone-shaped protrusion protruding from the outer plate of the skull. The size ranges from a few millimeters to several centimeters in diameter. It has no adhesion to the scalp, no tenderness, and usually no discomfort. Except for causing deformation of appearance, it generally does not cause special symptoms.

In clinical practice, skull osteoma should be differentiated from diseases such as frontal bone hyperplasia, cranial fibrous dysplasia, meningioma, and fibrous dysplasia.

1. Frontal bone hyperplasia: Frontal bone hyperplasia presents as wavy bone hyperplasia, and patients often have headaches, obesity, and decreased libido. It is more common in postmenopausal women, sometimes accompanied by diabetes or diabetes insipidus.

2. Fibrous dysplasia of the cranium: Fibrous dysplasia of the cranium has extensive lesions, a wide base, and multiple locations, involving the lamina and cranial plates. Other bones throughout the body may also be affected, and tend to be unilateral.

3. Meningioma: Meningioma grows fast, with irregular new bone hyperplasia and osteoid changes. The tumor base is wide, and there may be osteolytic changes in the skull plate. The tumor blood supply increases, causing the nearby blood vessel grooves to widen and increase.

4. Fibrous dysplasia: Fibrous dysplasia has a wide range of lesions, most commonly on the orbital roof, with facial changes. X-rays and CT scans show that the entire thickness of the skull is affected, with unclear boundaries and inconsistent density. There may be changes in flat bones in other parts of the body.