Paquette Cherie, Slater Shahrzad E, McMahon Megan D, Quddus M Ruhul
Department of Pathology and Laboratory Medicine, Women and Infants Hospital of Rhode Island, Providence, Rhode Island.
Warren Alpert Medical School of Brown University, Providence, Rhode Island.
Diagn Cytopathol. 2016 May;44(5):419-21. doi: 10.1002/dc.23432. Epub 2016 Jan 22.
Here we report a rare case of Cokeromyces recurvatus in a Pap test in an asymptomatic pregnant patient. Each liquid-based Pap slide contained multiple rounded yeast-like forms measuring 10-30 µm including some profiles with peripheral small buds. The background had neither epithelial abnormality nor any significant inflammation. A positive silver stain aided in confirming a fungal organism. Rare fungi were considered including Paracoccidioides brasiliensis due to the 'mariner's wheel' morphology of forms with peripheral budding; however, the final report morphologically favored C. recurvatus which was subsequently confirmed by culture. This is the sixth report of C. recurvatus isolated at a gynecologic site. While C. recurvatus has been reported to cause invasive disease in immunocompromised patients at deep sites, in the gynecologic tract it has so far been reported as a non-pathogenic colonizer. Awareness of this organism and use of either culture or molecular diagnostics are important in avoiding misdiagnosis.
在此,我们报告一例罕见的无症状孕妇巴氏涂片检查中发现弯孢科克霉的病例。每张液基巴氏涂片载玻片上有多个圆形酵母样形态,大小为10 - 30微米,包括一些带有周边小芽的形态。背景中既无上皮异常,也无任何明显炎症。阳性银染色有助于确认真菌生物体。考虑到具有周边芽生的形态呈“水手轮”状,曾怀疑有包括巴西副球孢子菌在内的罕见真菌;然而,最终报告在形态学上支持弯孢科克霉,随后通过培养得以证实。这是在妇科部位分离出弯孢科克霉的第六份报告。虽然据报道弯孢科克霉在免疫功能低下患者的深部部位可引起侵袭性疾病,但在生殖道中,迄今为止它被报道为非致病性定植菌。认识这种生物体并使用培养或分子诊断方法对于避免误诊很重要。