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患者男性,19岁,左侧睾丸肿大2月入院,肿块呈进行性增大。体查:外生殖器发育正常,男性第二性征表现明显,无男性乳房发育,左侧睾丸中部可及质中偏硬的包块,大小约1cm 3,表面光滑,透光试验阴性．CT显示左睾丸内见稍高密度条索灶, CT值为84Hu,未见积液,增强提示左睾丸内条索灶呈环形中等强化,腹股沟及盆腔淋巴结无肿大。血AFP、CEA、HCG、性激素均在正常参考范围内。行
Male patient, 19 years old, left testicular enlargement admitted to hospital in February, the mass showed a progressive increase. Physical examination: normal external genital development, secondary male sexual manifestations were obvious, no male breast development, the left side of the central testis mass and mass in the hard mass, the size of about 1cm3, the surface is smooth, light transmission test negative. CT showed a slightly higher density in the left testicle spondylosis, CT value of 84Hu, no effusion, enhancement prompted the left testicular lesions were ring moderate enhancement, inguinal and pelvic lymph nodes without swelling. Blood AFP, CEA, HCG, sex hormones are in the normal reference range. Row