肺原发软骨肉瘤临床上罕见,我院收治1例,经手术、病理证实。患者男,56岁。因左侧胸背部疼痛半月就诊。查体无阳性发现,实验室检查未见异常。X 线检查:左肺下叶背段可见一直径约1cm 小结节影,密度均匀,边缘清晰,无分叶及毛刺。拟诊:①结核球;②早期周围 Primary chondrosarcoma of the lung is rarely seen clinically. One case was treated in our hospital and confirmed by surgery and pathology. Male patient, 56 years old. Left half of the chest and back pain for treatment. There were no positive findings in the physical examination and no abnormalities in laboratory tests. X-ray examination: A small nodules with a diameter of about 1 cm can be seen in the dorsal segment of the lower lobe of the left lung. The density is uniform, the edges are clear, and there are no leaf segments and burrs. Diagnosis: 1 tuberculosis ball; 2 early surroundings