又一例盆骨软骨肉瘤。可见右下方广泛的白、蓝白结节状软骨瘤组织正从骨向外浸润。软骨肉瘤可见于大范围年龄段人群，且稍多见于男性。它们多数生长缓慢，十年或更长时间才出现症状。
软骨肉瘤：坐骨(肉眼) 盆骨(肉眼) 右髂骨翼X线 CT 低倍镜 高倍镜
Here is another example of a chondrosarcoma arising in the pelvis. Note the extensive nodules of white to bluish-white cartilagenous tumor tissue eroding and extending outward from the bone at the lower right. Chondrosarcomas can occur over a wide age range, and there is a slight male predominance. Many of them are slow growing, with symptoms present for a decade or more.