例1，男，56岁。在领枕部无病性逐渐增大包块两个月，颅手片示包块处颅骨疏松、颅骨内外有软组织阴影。CT检查示左颞枕部高密度阴影，拟为脑膜瘤。患者有碘过敏史，未能做脑血管造影。在全麻下行包块切除，术中见颅骨明显增厚，质地疏松，表面布满针尖样小孔颅骨外有2×3×1．5 Example 1, male, 56 years old. In the neck pillow gradually increase the disease-free mass two months, cranial films showed skull osteoporosis, skull with soft tissue shadow inside and outside. CT examination showed high temporal shadow of the temporal occipital shadow, intended for meningioma. Patients with iodine allergy history, failed to make cerebral angiography. Under general anesthesia underwent mass excision, intraoperative see the skull was significantly thicker, loose texture, the surface covered with needle-like holes outside the skull 2 ​​× 3 × 1.5