软骨粘液纤维瘤为一种少见的骨良性肿瘤,来源于成软骨性结缔组织的骨肿瘤。国内有关文献报告约为40多例,多见于下肢管状骨,颧骨尚未见报道。患者女,35岁。因右侧颧部肿块1年余,缓慢增大,轻度不适,于1988年7月15日入院。查体:全身各系统检查正常。右侧颧部明显隆起,肿块约5×3×2cm,质硬,界限不清无明显压痛,皮肤颜色正常。X线片显示:右上颌窦顶壁、颧骨及颧弓上部见溶骨性骨质破坏,无明显边界,无骨质增生及骨膜反应(图1)。意见为右上颌骨及颧骨骨质破坏。CT检查:右侧颧骨呈膨胀性改变,其骨松 Cartilaginous mucinous fibroids are rare benign tumors derived from bone tumors that are cartilage-forming connective tissue. The domestic literature reports about more than 40 cases, more common in lower extremity tubular bone, cheekbones have not been reported. Female patient, 35 years old. Due to the right side of the zygomatic mass more than 1 year, slowly increased, mild discomfort, in July 15, 1988 admission. Physical examination: the body of the system to check the normal. The right side of the zygomatic significant bulge, mass about 5 × 3 × 2cm, hard, clear boundaries without tenderness, the skin color is normal. X-ray showed: the top right parietal sinus, zygomatic arch and the upper part of the zygomatic arch see osteolytic bone destruction, no border, no hyperplasia and periosteal reaction (Figure 1). Opinion for the right maxillary and zygomatic bone destruction. CT examination: the right zygomatic swelling was changed, the bone pine