原发性腹膜间皮瘤，尤其恶性腹膜间皮瘤临床罕见。其特征为发病隐匿，症状缺乏特异性，治疗效果不佳。快速明确的诊断对腹膜间皮瘤后续治疗具有重要意义。本文对1例恶性腹膜间皮瘤患者发病特点，以强烈逻辑性为指导，提供了快速诊断思路，以期为临床类似病例的快速诊断提供借鉴。

Primary peritoneal mesothelioma, especially malignant peritoneal mesothelioma (MPM), is clinically rare. It is characterized by insidious onset, lack of specific symptoms, and poor treatment effect. Rapid and definite diagnosis is of great significance for follow-up treatment of peritoneal mesothelioma. According to the pathogenesis characteristics of one MPM patient, this case report presents a rapid diagnosis method guided by strong logic, and in order to provide reference for the rapid diagnosis of similar clinical cases.