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病例女孩,11岁,以右前臂肿胀和指尖麻木感为主诉入院。临床及检查所见:右前臂掌侧明显肿胀。入院时右前臂 X 片所见无明显钙化影,但可见散在微小钙化点,无明显骨膜反应和骨质破坏改变。患处表面光滑,质硬有弹性的肿物,皮温增高。右手指麻木,伸展困难。右腋窝淋巴结肿胀,腹部未触及肿瘤。增强扫描见右前臂掌侧有界限较清楚的肿物。作铊扫描,
The girl, aged 11, was admitted to the hospital with swelling of her right forearm and numbness of her fingertips. Clinical and examination findings: Swelling of the palmar side of the right forearm. On admission, there was no visible calcification on the X-ray of the right forearm, but it was scattered in the microcalcification site. There was no obvious periosteal reaction and bone destruction. The affected area has a smooth surface, a hard, elastic mass and increased skin temperature. The right finger is numb and stretches hard. The right axillary lymph node swollen and the abdomen did not touch the tumor. The enhanced scan showed a clearly defined mass on the palm of the right forearm. For scanning,