Baystate Medical Center, Springfield, MA, USA.
J Investig Med High Impact Case Rep. 2021 Jan-Dec;9:23247096211001649. doi: 10.1177/23247096211001649.
(also referred to as and ) is the most common intestinal parasite in the world, affecting approximately 200 million people annually. Symptoms of include foul-smelling diarrhea, abdominal cramping, bloating, gas, and nausea. Although usually self-limiting, can progress to dehydration, malnutrition, and failure to thrive, especially in immunocompromised individuals. Early diagnosis and treatment is imperative to prevent and control infection of . Infectious Disease Society of America diagnostic guidelines recommend obtaining stool studies to diagnose ; when stool studies are negative but suspicion remains high, duodenal aspirate microscopy is the only alternative diagnostic strategy suggested. We report a patient diagnosed incidentally with from a duodenal biopsy specimen obtained during a workup for a gastrointestinal bleed. There are limited cases of diagnosed by duodenal biopsy reported in the literature. We review studies that suggest duodenal biopsy can be a very sensitive strategy for the diagnosis of .
（也被称为 和 ）是世界上最常见的肠道寄生虫，每年影响约 2 亿人。 的症状包括恶臭腹泻、腹部绞痛、腹胀、气胀和恶心。尽管通常是自限性的，但 可能会进展为脱水、营养不良和生长不良，特别是在免疫功能低下的个体中。早期诊断和治疗对于预防和控制 的感染至关重要。美国传染病学会的诊断指南建议进行粪便研究以诊断 ；当粪便研究为阴性但怀疑仍然很高时，十二指肠抽吸显微镜检查是唯一建议的替代诊断策略。我们报告了一例在胃肠道出血检查中偶然通过十二指肠活检诊断 的患者。文献中报道的通过十二指肠活检诊断 的病例有限。我们回顾了一些研究，这些研究表明十二指肠活检可能是诊断 的非常敏感的策略。
