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患者男,38岁。反复咳嗽、咯血痰2个月,左胸痛10天,加重3天入院。吸烟1包/天。患者无其他症状,无癌症家族史,体检及实验室检查无特殊。胸部CT检查显示:左肺下叶圆形、边界清楚、密度均匀的肿块影,大小约3.4 cm(图1A),病灶内无钙化、液化坏死,周围无卫星灶,CT值约46.6HU。增强扫描动脉期病灶明显不均匀强化(图1B),CT值约67.2~128 HU。静脉期呈等密度,CT值约66.3 HU(图1C)。患者腹部超声未见异常。请分析病变性质。答案见第959页。
Male patient, 38 years old. Repeated cough, hemoptysis sputum 2 months, left chest pain for 10 days, increased 3 days admission. Smoking a pack / day. Patients without other symptoms, no family history of cancer, physical examination and laboratory tests no special. Chest CT examination showed that the left lower lobe had a round, clear boundary and a uniform mass with a size of about 3.4 cm (Fig. 1A). No calcification, liquefaction and necrosis were found in the lesion and there was no satellite nearby. The CT value was about 46.6HU. Enhanced scan arterial lesions were significantly enhanced (Figure 1B), CT value of about 67.2 ~ 128 HU. The venous phase was isodense with a CT value of about 66.3 HU (Figure 1C). Abdominal ultrasound patients no abnormalities. Please analyze the nature of the disease. See page 959 for the answer.