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Annals of Nuclear Medicine and Molecular Imaging

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篇名 A possible musculoskeletal pitfall in 18F-FDG PET: nodular fasciitis
卷期 23:3
並列篇名 正子攝影於肩胛骨之偽陽性呈現:結節性肌膜炎
作者 王克彬蔡世傳陳怡靜
頁次 165-168
關鍵字 F-FDG PETnodular fasciitismuscu-loskeletal tumor氟-18-氟化去氧葡萄糖PET肌肉肌膜炎肌肉骨骼腫瘤
出刊日期 201009

中文摘要

一位37歲女性於正子放射斷層掃描健康檢查中發現右側肩胛骨靠近棘下窩處有一氟-18-去氧葡萄糖異常聚集的區城,我們首先考慮此可能為惡性病所致。患者接受外科手術切除,病理報告呈現為紡錘細胞伴隨高細胞性及骨化之成長型態,因此診斷為結節性肌膜炎。由於結節性肌膜炎在正子掃描中容易被誤判為惡性腫瘤的呈現,且發生此位置亦不常見,特報告此一罕見偽陽性病例。

英文摘要

A 37-year-old female received a whole-body 18F-FDG PET scan for a purpose of tumor screening. The PET scan revealed a focal FDG-avid lesion at the upper back near the infraspinatus fossa of the right scapula. A malignant lesion was highly suspected. The patient received wide excision and the pathology findings showed an intramuscular well-defined non-encapsulated tumor with a diagnosis of nodular fasciitis. 18F-FDG PET whole-body scan have been reported to be a useful tool in differentiating benign from malignancy. However, some false-positive situations may still interfere with the differentiation. In this case, a benign lesion, nodular fasciitis, can be a pitfall when interpreting an FDG PET image.