Lin Qian, Huang Jun, Chen Yuanyuan, Wu Xiaoli, Ma Yuhua, Yang Qing, Long Pan, Chen Xin
Department of Laboratory Medicine, Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Chengdu, Sichuan, China.
Department of Ophthalmology, General Hospital of Western Theater Command, Chengdu, China.
Front Med (Lausanne). 2025 Mar 4;12:1539661. doi: 10.3389/fmed.2025.1539661. eCollection 2025.
(), a protozoan parasite often found in the human intestinal tract, is typically identified through fecal examination. Its presence in ascitic fluid is quite uncommon, making such a detection significant in the context of medical diagnosis.
In this case report, we describe a 53-year-old female patient who presented with a 6-month history of recurrent diarrhea and fecal incontinence subsequent to the diagnosis of rectal signet ring cell carcinoma. The patient was discovered to have a severe abdominal infection, with identified in both the abdominal cavity and the intestinal tract. Marked improvement in diarrheal symptoms was achieved following peritoneal lavage with metronidazole.
This case underscores the significance of detecting infection in the ascitic fluid of a patient afflicted with rectal signet ring cell carcinoma. , a prevalent opportunistic pathogen, often exploits the compromised immune states and nutritional deficiencies prevalent in cancer patients, rendering them more susceptible to such infections. It is imperative to enhance diagnostic accuracy and mitigate the risk of misdiagnosis to subsequently improve the clinical outcomes and overall quality of life for individuals battling cancer.
（某种原生动物寄生虫名称未给出），一种常存在于人体肠道的原生动物寄生虫，通常通过粪便检查来识别。它在腹水液中的存在相当罕见，因此在医学诊断背景下这种检测具有重要意义。
在本病例报告中，我们描述了一名53岁女性患者，在诊断为直肠印戒细胞癌后出现了6个月的反复腹泻和大便失禁病史。该患者被发现患有严重的腹部感染，在腹腔和肠道中均发现了（寄生虫名称未给出）。用甲硝唑进行腹腔灌洗后，腹泻症状有明显改善。
本病例强调了在患有直肠印戒细胞癌的患者腹水液中检测（寄生虫名称未给出）感染的重要性。（寄生虫名称未给出），一种常见的机会性病原体，常常利用癌症患者普遍存在的免疫状态受损和营养缺乏的情况，使他们更容易受到此类感染。必须提高诊断准确性并降低误诊风险，以随后改善癌症患者的临床结局和整体生活质量。
