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Abstract：
UNASSIGNED: The inverted and oncocytic subtypes of sinonasal Schneiderian papillomas are benign tumors with possible rare malignant transformation and are typically managed with complete surgical resection and close follow-up. While computed tomography (CT) and magnetic resonance imaging (MRI) are mainstays in preoperative evaluation of bony invasion and soft tissue extension of the lesion, their imaging characteristics by 18F-fluoro-2-deoxy-D-glucose positron emission tomography (FDG-PET) is less well characterized.
UNASSIGNED: To describe the clinical presentation and management of a PET positive sinonasal lesion. To conduct a literature review of FDG uptake in benign sinonasal papillomas.
UNASSIGNED: Case report (n = 1) and literature review of similar cases (n = 32).
UNASSIGNED: We report the case of a 69-year-old man presenting with an isolated left maxillary sinus mass with avid FDG uptake, discovered on PET/CT imaging. An endoscopic left maxillary mega-antrostomy provided successful definitive treatment for final pathologic diagnosis of oncocytic papilloma. Literature review of cases of sinonasal papillomas with avid FDG uptake found that oncocytic papillomas, on average, exhibit greater uptake than inverted papillomas and both may be mistaken as malignancies on PET.
UNASSIGNED: While PET imaging demonstrating avid FDG uptake is associated with an increased risk of malignancy, it does not rule out the possibility of a benign sinonasal papilloma nor other benign inflammatory lesions. Particularly, oncocytic papillomas may have very high FDG uptake and mimic malignant lesions.
UNASSIGNED: To describe the clinical presentation and management of a PET positive sinonasal lesion. To conduct a literature review of FDG uptake in benign sinonasal papillomas.
UNASSIGNED: Case report (n = 1) and literature review of similar cases (n = 32).
UNASSIGNED: We report the case of a 69-year-old man presenting with an isolated left maxillary sinus mass with avid FDG uptake, discovered on PET/CT imaging. An endoscopic left maxillary mega-antrostomy provided successful definitive treatment for final pathologic diagnosis of oncocytic papilloma. Literature review of cases of sinonasal papillomas with avid FDG uptake found that oncocytic papillomas, on average, exhibit greater uptake than inverted papillomas and both may be mistaken as malignancies on PET.
UNASSIGNED: While PET imaging demonstrating avid FDG uptake is associated with an increased risk of malignancy, it does not rule out the possibility of a benign sinonasal papilloma nor other benign inflammatory lesions. Particularly, oncocytic papillomas may have very high FDG uptake and mimic malignant lesions.
摘要：
■鼻窦Schneiderian乳头状瘤的倒置型和嗜酸细胞亚型是良性肿瘤，可能具有罕见的恶性转化，通常通过完全手术切除和密切随访来治疗。虽然计算机断层扫描（CT）和磁共振成像（MRI）是术前评估病变的骨侵犯和软组织扩展的主要依据，通过18F-氟-2-脱氧-D-葡萄糖正电子发射断层扫描（FDG-PET）对其成像特征的表征较少。
■描述PET阳性鼻窦病变的临床表现和处理。目的对良性鼻腔鼻窦乳头状瘤的FDG摄取进行文献复习。
■病例报告（n=1）和类似病例的文献综述（n=32）。
■我们报告了一例69岁的男性患者，表现为孤立的左上颌窦肿块，FDG摄取旺盛，在PET/CT成像上发现。内窥镜左上颌大型肛门吻合术为最终诊断嗜酸性乳头状瘤提供了成功的明确治疗。对FDG摄取旺盛的鼻窦乳头状瘤病例的文献回顾发现，嗜酸性细胞乳头状瘤，平均而言,表现出比内翻性乳头状瘤更高的摄取，并且在PET上都可能被误认为是恶性肿瘤。
■虽然PET成像显示FDG摄取旺盛与恶性肿瘤风险增加相关，它不排除良性鼻窦乳头状瘤或其他良性炎性病变的可能性。特别是,嗜酸细胞乳头状瘤可能具有非常高的FDG摄取并模拟恶性病变。
■描述PET阳性鼻窦病变的临床表现和处理。目的对良性鼻腔鼻窦乳头状瘤的FDG摄取进行文献复习。
■病例报告（n=1）和类似病例的文献综述（n=32）。
■我们报告了一例69岁的男性患者，表现为孤立的左上颌窦肿块，FDG摄取旺盛，在PET/CT成像上发现。内窥镜左上颌大型肛门吻合术为最终诊断嗜酸性乳头状瘤提供了成功的明确治疗。对FDG摄取旺盛的鼻窦乳头状瘤病例的文献回顾发现，嗜酸性细胞乳头状瘤，平均而言,表现出比内翻性乳头状瘤更高的摄取，并且在PET上都可能被误认为是恶性肿瘤。
■虽然PET成像显示FDG摄取旺盛与恶性肿瘤风险增加相关，它不排除良性鼻窦乳头状瘤或其他良性炎性病变的可能性。特别是,嗜酸细胞乳头状瘤可能具有非常高的FDG摄取并模拟恶性病变。
