原发性睾丸类癌自Simon等(1954)首次报告1例伴畸胎瘤发生以来,迄今仅见27例报告。我们近遇1例,报告如下。患者范某,男,26岁(住院号34760)。无意中发现左侧睾丸上方有一豆大结节2年余,缓慢进行性增大,患处有时隐痛,久立时有下坠感,左腰部偶有酸胀疼痛。曾用抗结核药物治疗无效。查体,阴囊左侧较右侧低垂约1cm,左睾丸上方扪及2×1.5×1.5cm肿块,质地硬韧,界限清楚,表面光滑,与皮肤无粘连。全身检查及化验结果均无异常发现。临床诊断为左睾丸结核,做了肿块局部切除。病理检查(病理号84040),巨检为附有部分睾丸组织的肿物,2.5×2.5×2cm,包膜完整。切面质细,灰黄色,有灶状出血坏死。光镜下瘤细胞形态、大小及着色均较一致,呈圆形或卵圆形,胞膜欠清晰。胞浆较丰富,可见略嗜酸性的细小颗 Primary testicular carcinoidism Since Simon (1954) first reported the occurrence of a teratoma, only 27 cases have been reported so far. We met with 1 case in the near future. The report is as follows. FAN, male, 26 years old (Hospital No. 34760). Inadvertently found that there was a large nodule above the left testis for more than two years, slowly increased, the affected area sometimes dull pain, a sense of falling immediately when the long time immediately, left flank occasional soreness pain. The treatment with anti-tuberculosis drugs failed. Physical examination revealed that the left side of the scrotum was about 1 cm lower than the right side, and the upper part of the left testis and 2 × 1.5 × 1.5 cm mass had a hard and tough texture, a clear boundary, a smooth surface, and no adhesion to the skin. There was no abnormality in the whole body examination and test results. Clinical diagnosis of left testicular tuberculosis, a local resection of the mass. Pathological examination (pathological number 84040), macroscopic examination with a portion of the testicular tissue mass, 2.5 × 2.5 × 2cm, complete envelope. Cut surface fine, grayish yellow, with focal hemorrhage and necrosis. Under the light microscope, the morphology, size and coloration of the tumor cells were all relatively uniform. They were round or oval and the cell membrane was not clear. The cytoplasm is more abundant, with slightly acidic particles