腹膜后恶性化学感受器瘤临床上少见,早期较难发现而不易诊断。作者仅遇见2例,现报告如下。例1.男,45岁。腹部时有隐痛5年余,1970年2月始于左下腹,不放射,常自行缓解,反复多处就诊未明诊断。3年后腹痛渐趋频繁,一日数次,每次持续一小时余,伴头昏乏力,纳差难眠,体重减轻,遂于1973年2月26日入院。体检血压19/12KPa,一般情况尚可,无特异发现,腹部亦然,实验室各种检查均无异常。后经腹膜 Retroperitoneal malignant chemoreceptor tumors are rare in clinical practice and are difficult to diagnose in early stages. The author only met 2 cases and the report is as follows. Example 1. Male, 45 years old. There are more than 5 years of pain in the abdomen, and in the left lower abdomen in February 1970, no radiation, often self-reliance, repeated multiple diagnoses. After 3 years, her abdominal pain gradually became more frequent. He continued to stay for more than an hour a day, with dizziness, fatigue, poor sleep, and weight loss. She was admitted to hospital on February 26, 1973. Physical examination of blood pressure 19/12KPa, the general condition is acceptable, no specific findings, the abdomen is no exception, the laboratory did not have any abnormalities. Postperitoneum