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Rosai-Dorfman病(简称RDD)是一种罕见的组织细胞疾病,典型表现为无痛性双侧颈部淋巴结肿大,也可累及双侧腋窝、腹股沟和纵隔淋巴结。结外受累很常见,最常见影响皮肤、上呼吸道和骨;骨骼受累最常见累及长管状骨,常表现为多发性病灶;其他可累及的部位有颅骨、脊柱、骨盆、指骨、掌骨和肋骨[1-2]。RDD的临床症状不典型,常规的X射线或CT等检查缺乏特异性表现,早期诊断较困难。笔者报道了1例经病理学结果证实为RDD女性患者的临床表现、实验室检查结果和18F-FDG PET/CT影像学特点,并结合文献讨论了功能影像学在该病早期诊断中的应用价值,旨在提高影像科医师对该病的认识,避免误诊。
胫骨孤立性Rosai-Dorfman病18F-FDG PET/CT显像分析及文献复习
Appearance of a solitary Rosai-Dorfman disease of tibia on 18F-FDG PET/CT: A case report and literature review
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摘要: Rosai-Dorfman病是一种罕见的组织细胞病,也称为窦性组织细胞增生症,伴有大量淋巴结肿大。典型表现为双侧颈部无痛淋巴结病,也可能发生淋巴结外性器官受累,包括皮肤、上呼吸道和骨骼。约8%的患者可发生骨受累。放射学检查对该病缺乏特异性,单纯依靠放射学检查很难确诊,病变的活检和病理检查是确诊的唯一途径。笔者报道了1例右腿间歇性疼痛的36岁Rosai-Dorfman病患者的18F-FDG PET/CT表现。该研究结果提示18F-FDG PET/CT融合显像在鉴别诊断、确定疾病的范围和指导活检取材方面有重要价值。Abstract: Rosai-Dorfman disease (RDD), also known as sinus histiocytosis with massive lymphadenopathy, is a rare histiocytic disease. Typically, a patient with RDD presents with painless bilateral cervical lymphadenopathy. The involvement of extranodal organs, such as the skin, upper respiratory tract, and bone, may also occur. Bone involvement occurs in approximately 8% of patients with RDD. Obtaining an affirmatory diagnosis by non-specific radiological findings is difficult. The final diagnosis can be achieved by biopsy and pathological examination of the lesion. The 18F-FDG PET/CT results of a young patient aged 36 with RDD who presented with intermittent pain in the right leg was reported in this article. This case illustrates the usefulness of functional fused modality in differentiating diagnosis and in identifying the extent of this disease and the appropriate sites for biopsy.
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